2026 NPPES data Rheumatology Physician NPI 1639739485 MD
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ANAM AHMAD, MD

Rheumatology Physician in CHESTERFIELD, Missouri. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
697
Medicare Part D claims · 114 beneficiaries · Rheumatology Physician avg: 2K
Industry payments
$116.71
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANAM AHMAD, MD is a Rheumatology Physician ([object Object]) practicing in CHESTERFIELD, Missouri with a Medicare Part D prescribing footprint of 697 claims across 114 beneficiaries . Industry payments of $116.71 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANAM AHMAD, MD filed 697 Medicare Part D claims in 2023 across CHESTERFIELD, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

ANAM AHMAD, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/14/2019

NPI 1639739485

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

697 66% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

Specialty distribution in Missouri

How Rheumatology Physician compares to other specialties among Missouri providers

Missouri providers

Rheumatology Physician share within Missouri

1. Rheumatology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Rheumatology Physician share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Rheumatology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Rheumatology Physician ABMS/AOA estimate

Est. board-certified rate (Rheumatology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Rheumatology Physician) — ABMS / AOA estimate

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).

ANAM AHMAD, MD is a Rheumatology Physician provider practicing in CHESTERFIELD, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1639739485. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ANAM AHMAD, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 222 S WOODS MILL RD STE 760, CHESTERFIELD, MO, 63017, with a listed phone of (314) 205-6050. NPI 1639739485 was issued on 06/14/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AHMAD most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 697 prescription claims written by this provider, covering 114 Medicare beneficiaries and totaling roughly $662K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

222 S WOODS MILL RD STE 760
CHESTERFIELD, MO 63017

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 2023.

697
Total Claims
$662K
Total Drug Cost
114
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,123
Total Day Supply
32,414
Generic Drug Cost
$33K

Patient Demographics

Average Patient Age
64.5 years
Avg HCC Risk Score
2.06
Gender Split
75% female / 25% male
Age Distribution
<65: 43, 65-74: 50, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Methotrexate
Methotrexate Sodium
110
Hydroxychloroquine Sulfate
104
Diclofenac Sodium
58
Leflunomide
48
Prednisone
45
Mycophenolate Mofetil
40
Azathioprine
35
Humira(Cf) Pen
Adalimumab
27
Folic Acid
21
Meloxicam
21

* 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.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

ANAM AHMAD, MD's 697 claims are below the specialty average of 2,054.

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.

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 2023, ANAM AHMAD, MD wrote 697 Medicare Part D claims totaling $662K in drug costs for 114 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 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does ANAM AHMAD, MD prescribe most often?
Based on 2023 Medicare Part D data, ANAM AHMAD, MD's most frequently prescribed drugs include Methotrexate, Hydroxychloroquine Sulfate, 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 697 Part D claims and 114 Medicare beneficiaries in 2023. 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

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 (2023). 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 April 2026 (NPPES) / 2023 (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