NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1639739485 MD
Verify on CMS → Anam Ahmad, MD
Rheumatology Physician in Chesterfield, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,377 in Rheumatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
551
Medicare Part D claims · 100 beneficiaries · Rheumatology Physician avg: 2K
Industry payments
$116.71
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Anam Ahmad, MD filed 551 Medicare Part D claims in 2024 as a Rheumatology Physician in Chesterfield, Missouri.
- 551
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥65th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Anam Ahmad, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1639739485), first enumerated 06/14/2019.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 551 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$116.71 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1639739485 · Rheumatology Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1639739485
- ENUM-RECENT 2019
- TAX-MID 6K Rheumatology Physician
- RX-LIGHT 551
- BOOK-THIN 114 in Missouri
- PHOTO-ENUM Elizabeth Anderson · 2019
Anam Ahmad, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
551 ≥ 65th percentile 65% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Anam Ahmad, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Anam Ahmad, MD?
Quality data not reportedPrimary specialty
Rheumatology Physician
Medicare Part D claims
551 73% vs specialty avg
Specialty distribution in Missouri
How Rheumatology Physician compares to other specialties among Missouri providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Rheumatology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1639739485 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 06/14/2019 |
Hospital and facility affiliations
Facilities where Anam Ahmad, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Medical Specialists OF St Lukes LLC
Chesterfield, MO
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Anam Ahmad, MD. Source: openpaymentsdata.cms.gov.
Total received
$117
Largest payer
Janssen Scientific Affairs, LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
551
Total Claims
$570K
Total Drug Cost
100
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 913.333
- Total Day Supply
- 26,103
- Generic Drug Cost
- $17K
Patient Demographics
- Average Patient Age
- 66.3 years
- Avg HCC Risk Score
- 2.09
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 31, 65-74: 46, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Anam Ahmad, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
98 claims
- Methotrexate
Methotrexate
79 claims
- Diclofenac Sodium
Diclofenac Sodium
40 claims
- Mycophenolate Mofe… 32
Mycophenolate Mofetil
32 claims
- Prednisone 32
Prednisone
32 claims
- Leflunomide 30
Leflunomide
30 claims
- Folic Acid 22
Folic Acid
22 claims
- Humira(Cf) Pen 22
Humira(Cf) Pen
22 claims
| Drug | Claims |
|---|---|
| Hydroxychloroquine Sulfate | 98 |
| Methotrexate Methotrexate Sodium | 79 |
| Diclofenac Sodium | 40 |
| Mycophenolate Mofetil | 32 |
| Prednisone | 32 |
| Leflunomide | 30 |
| Folic Acid | 22 |
| Humira(Cf) Pen Adalimumab | 22 |
| Benlysta Belimumab | 18 |
| Enbrel Sureclick Etanercept | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Anam Ahmad, MD fits within the Rheumatology Physician landscape nationally.
6,377
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,058
Avg Claims per Provider
Anam Ahmad, MD's 551 claims are below the specialty average of 2,058.
Nationwide Rheumatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ahmad, both outside Missouri so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2019)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Rheumatology Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Ahmad.
One of 114 Rheumatology Physician providers enrolled in Missouri, 5 are shown here.
Dr. Zaki Abou Zahr
M.D.
Columbia, MO
Dr. Stephen Armstrong
MD
Springfield, MO
Dr. Romila Aslam
M.D.
Bridgeton, MO
Dr. John Atkinson
MD
Saint Louis, MO
Dr. Rama Atluri
M.D.
Saint Louis, MO
Compare Rheumatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Anam Ahmad, MD's specialty? ▼
Anam Ahmad, MD specializes in Rheumatology Physician and practices in Chesterfield, Missouri. Credentials: MD.
How much does Anam Ahmad, MD prescribe under Medicare Part D? ▼
In 2024, Anam Ahmad, MD wrote 551 Medicare Part D claims totaling $570K in drug costs for 100 beneficiaries.
Where is Anam Ahmad, MD located? ▼
Anam Ahmad, MD is located at 222 S WOODS MILL RD STE 760, Chesterfield, MO, 63017. Phone: (314) 205-6050.
What is Anam Ahmad, MD's NPI number? ▼
Anam Ahmad, MD's National Provider Identifier (NPI) is 1639739485, issued on 06/14/2019.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,377 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,058 Medicare Part D claims per year.
What drugs does Anam Ahmad, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Anam Ahmad, MD's most frequently prescribed drugs include Hydroxychloroquine Sulfate, Methotrexate, Diclofenac Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Anam Ahmad, MD accept Medicare? ▼
Anam Ahmad, MD appears in CMS Medicare data with 551 Part D claims and 100 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Anam Ahmad, MD's credentials? ▼
Anam Ahmad, MD's NPI is 1639739485 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.