Medicare Account Change Feed

Medicare Account Change Feed tracks verified CMS Medicare enrollment and revalidation changes between monthly public datasets.

Instead of manually comparing large Medicare enrollment files, credentialing, provider-network, revenue-cycle, healthcare-data, and research teams can retrieve organization-level changes enriched with NPI, Medicare Enrollment ID, specialty, due-date, and provider-reassignment context in a structured dataset.

Current edition: September 2026 verified inventory
Available records: 5,115 verified account changes
Detected event: NEW_UPCOMING_DATE_SURFACED
Price: $0.005 per returned account change ($5 per 1,000)

Quick start

Choose the starting record and the number of results in Input, then run the Actor.

The September 2026 inventory contains 5,115 verified account changes.

A single run can return up to 1,000 records. Use startFrom to retrieve additional batches from the inventory.

Results are returned as a structured dataset ready for review, export, or API use.

What does this Actor detect?

The current edition focuses on one verified event:

NEW_UPCOMING_DATE_SURFACED

This means the Medicare Enrollment ID had no populated revalidation due date in the August 2026 CMS snapshot and shows an upcoming revalidation due date of:

February 28, 2027

in the September 2026 CMS snapshot.

The event was verified at the Medicare Enrollment ID level against the August and September source snapshots.

The Actor does not claim that an organization needs a vendor, is actively shopping for credentialing services, or intends to purchase anything.

It reports a documented change in public Medicare enrollment data.

What information is included?

Each returned account change can contain:

• Organization name
• State
• Medicare Enrollment ID
• Detected event
• Detection month
• Previous due-date status
• Current due date
• Provider type
• Number of NPIs associated with the due enrollment
• Enrollment specialties
• Reassignment relationship count
• Unique reassignment NPIs
• Unique reassignment enrollments
• Reassignment specialty count
• CMS group reassignment count
• Multi-employer relationship count
• Maximum employer associations
• Evidence describing the compared CMS datasets
• Source and interpretation notes

Reassignment fields may legitimately be zero for provider types or enrollments without matching records in the CMS reassignment dataset.

Input

Start from record

Choose where in the verified inventory to begin.

Current range:

1 to 5,115

Example:

{
  "startFrom": 1001,
  "maxResults": 1000
}

This requests records 1,001 through 2,000, subject to the Actor's maximum charge limit.

Number of results

Choose how many verified account changes to return in the current run.

Current range:

1 to 1,000

Examples:

• startFrom: 1, maxResults: 5 → records 1–5
• startFrom: 1, maxResults: 100 → records 1–100
• startFrom: 1001, maxResults: 1000 → records 1,001–2,000
• startFrom: 5001, maxResults: 1000 → returns the remaining available records through 5,115

The per-run maximum is intentionally limited to 1,000 results. The full inventory remains accessible using multiple startFrom ranges.

Example output

{
  "success": true,
  "product": "Medicare Account Change Feed",
  "edition": "September 2026 verified inventory",
  "target_event": "Blank -> 2027-02-28",
  "account_change_number": 1,
  "account": "Lehigh Valley Physician Group",
  "state": "PA",
  "medicare_enrollment_id": "O20040227000335",
  "event": "NEW_UPCOMING_DATE_SURFACED",
  "detected_in": "September 2026",
  "previous_due_date": "BLANK / NONE",
  "current_due_date": "2027-02-28",
  "provider_type": "Non-DME Part B",
  "due_enrollment_npis": 217,
  "due_enrollment_specialties": [
    "Clinic/Group Practice"
  ],
  "reassignment_relationships": 2855,
  "reassignment_unique_npis": 2854,
  "reassignment_unique_enrollments": 2855,
  "reassignment_specialty_count": 66,
  "cms_group_reassignment_counts": [
    "2855"
  ],
  "multi_employer_relationship_rows": 1638,
  "max_employer_associations": 18,
  "evidence": "CMS Aug 2026 -> Sep 2026 Due Date List + Sep 2026 Reassignment List",
  "source": "Derived from publicly available CMS data.",
  "guardrail": "Public CMS enrollment-change intelligence only. Inclusion does not mean an organization needs a vendor or intends to buy."
}

Pricing

This Actor uses Pay Per Event pricing.

Each returned Medicare Account Change costs:

$0.005 per account change

Examples:

• 100 results = $0.50
• 5 results = $0.50
• 10 results = $1.00
• 100 results = $10.00
• 1,000 results = $5.00

A run may stop early if the configured maximum charge limit is reached.

Platform usage is currently included in the Actor pricing.

Data sources and methodology

The current edition is derived from publicly available Medicare enrollment datasets published by the U.S. Centers for Medicare & Medicaid Services (CMS).

The September 2026 inventory was generated by comparing the August 2026 and September 2026 CMS snapshots.

For the current event:

1. September records with a revalidation due date of 2027-02-28 were identified.
2. Records were grouped by Medicare Enrollment ID.
3. Each candidate Medicare Enrollment ID was checked against the August 2026 snapshot.
4. Candidates that already had a populated August revalidation due date were rejected from this event.
5. Candidates with no populated August revalidation due date were retained as verified NEW_UPCOMING_DATE_SURFACED events.
6. Verified records were enriched with September CMS reassignment data where applicable.

The final September 2026 inventory contains:

5,115 verified Medicare Enrollment IDs

for the event:

Blank / no populated August due date → February 28, 2027 in September

The Actor validates the expected inventory size before serving records.

Important interpretation notes

due_enrollment_npis and reassignment_unique_npis measure different scopes and should not be treated as interchangeable.

Some provider types may legitimately have zero reassignment relationships.

Reassignment counts describe relationships present in the relevant public CMS reassignment dataset and should not be interpreted as a complete measure of an organization's workforce, network, or commercial activity.

A surfaced Medicare revalidation date does not establish that an organization needs outside assistance or intends to hire a credentialing, enrollment, consulting, revenue-cycle, or other vendor.

This product is not a sales score, purchase-intent score, recommendation, or prediction of commercial opportunity.

Users should independently evaluate how the information applies to their own workflow.

Potential use cases

The feed can support workflows such as:

• Medicare enrollment monitoring
• Credentialing and revalidation research
• Provider-network research
• Revenue-cycle market intelligence
• Organization-level Medicare account monitoring
• Internal business-development research
• Public healthcare-data analysis
• Monthly change detection and account monitoring
• Healthcare data enrichment workflows

Current edition limitations

The current product is a verified September 2026 inventory, not a real-time CMS feed.

Running the Actor does not trigger a fresh nationwide CMS comparison.

The current edition contains one event type:

NEW_UPCOMING_DATE_SURFACED

and one verified transition:

BLANK / NONE -> 2027-02-28

The current inventory contains 5,115 records and supports retrieval in batches of up to 1,000 records per run.

Future editions may add:

• Additional monthly snapshots
• Additional revalidation dates
• Additional change-event types
• More filters
• Historical change tracking
• Recurring Medicare account monitoring

Independence and disclaimer

This is an independent data product.

It is not affiliated with, endorsed by, sponsored by, certified by, or operated by CMS or the U.S. Department of Health and Human Services (HHS).

Results are derived from publicly available CMS data and may reflect limitations, corrections, delays, or changes present in the source datasets.

Users are responsible for independently verifying information before making operational, commercial, compliance, or business decisions.