These are the federal agencies whose public datasets Fonteum ingests and attributes — the issuing authorities, not customers or partners. Every figure on the site links back to one of them.
National Provider Identifier 1639311509 as it appears in every federal dataset Fonteum holds. Each row is a distinct public source; the chip carries the source and the snapshot date behind that field — the record-level form of the source-provenanced graph.
Federal sources carrying NPI 1639311509
Federal source
Key
What it provides
Provenance
CMS Medicare Part D
NPI 1639311509
1 drugs prescribed, 2024
Source:CMS Part D·Snapshot DY2024
Prescribing
Medicare Part D prescribing
Prescriptions written under Medicare Part D, aggregated by drug across the program. Totals reflect claims paid, not patients treated.
11
Part D claims
$380
Total drug cost
1
Distinct drugs
—
Beneficiaries (≥)
Highest-cost drugs prescribed
Drug
Claims
Drug cost
Naltrexone Hcl
Quality
MIPS quality score
CMS Quality Payment Program Merit-based Incentive Payment System (MIPS) final score, where this clinician participated. Absence of a score is not a quality signal — many clinicians report through a group or are exempt.
Enrollment & sanctions
Standing
Medicare enrollmentNo PECOS enrollment record found for this NPISource:CMS PECOS·Snapshot 2026
OIG exclusion (federal)No active OIG exclusion on recordSource:OIG LEIE·Snapshot 2026
Ownership & affiliations
Graph relationships
One-hop relationships in the resolved entity graph — chain membership, ownership, and operation edges, each backed by a federal source row. Most individual clinicians carry none; edges populate for owners and organizations as the Lane D backfill runs.
Every field on this record is stored bitemporally — both when the fact was true in the world and when Fonteum recorded it. Open the time-travel view to reconstruct this record as of any past date, or to read each field with the source and dates behind it.
⟲View this record as of an earlier date
Related research & the graph
Context for this record
Studies that contextualize the federal data on this profile, and the canonical entity node behind NPI 1639311509 in the resolved graph.
Beneficiary counts below 11 are suppressed by CMS — the total shown is a lower bound.
Source:CMS Medicare Part D·Snapshot DY2024
Source:MD Medicaid·Snapshot 2025-12-01
Compromised-flag (federal monitoring/penalties)No monitored-compliance or CMS penalty flag on record (OIG CIA, CMS Civil Money Penalties checked)Source:OIG CIA · CMS CMP·Snapshot 2026
Screening aid — re-confirm any match against the issuing list before acting. A clean result means no record was found in the federal OIG LEIE or the state Medicaid lists Fonteum currently holds (NY, OH, GA), not a guarantee that none exists elsewhere. Not a legal or credentialing certification.