2026 NPPES data Urology Physician NPI 1669822136 M.D.
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AFFAN ZAFAR, M.D.

Urology Physician in SAINT LOUIS, 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
23
Medicare Part D claims · 14 beneficiaries · Urology Physician avg: 1K
Industry payments
$418.79
4 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

AFFAN ZAFAR, M.D. filed 23 Medicare Part D claims in 2023 as a Urology Physician in SAINT LOUIS, Missouri.

23
Part D claims, 2023
Likely
board-certified (heuristic)

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.

AFFAN ZAFAR, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

23 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

AFFAN ZAFAR, M.D. 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 AFFAN ZAFAR, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/15/2016

NPI 1669822136

Primary specialty

Urology Physician

Mid-sized

13,350 US NPIs in this specialty

Medicare Part D claims

23 98% vs specialty avg

2023 prescription claims

Specialty avg: 1,280

Specialty distribution in Missouri

How Urology Physician compares to other specialties among Missouri providers

Missouri providers

Urology Physician share within Missouri

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Urology 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).

AFFAN ZAFAR, M.D. is a Urology Physician provider practicing in SAINT LOUIS, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1669822136. 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.

AFFAN ZAFAR, M.D. appears in the CMS NPPES registry as a Urology Physician provider holding M.D. credentials at 1 BARNES JEWISH HOSPITAL PLZ, SAINT LOUIS, MO, 63110, with a listed phone of (314) 362-5000. NPI 1669822136 was issued on 06/15/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZAFAR 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 23 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $438 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.

Urology Physician is a mid-sized specialty nationwide, with 13,350 enrolled providers across 54 states and an average of 1,280 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

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

Provider Details

NPI 1669822136
Specialty Urology Physician
Credentials M.D.
Gender Male
NPI Issued 06/15/2016

Hospital and facility affiliations

Facilities where AFFAN ZAFAR, M.D. 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.

UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS
DALLAS, TX

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 AFFAN ZAFAR, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$419

Largest payer

IMMUNITYBIO, INC.

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.

23
Total Claims
$438
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
39
Total Day Supply
973
Generic Drug Cost
$431

Patient Demographics

Average Patient Age
73.9 years
Avg HCC Risk Score
1.30
Age Distribution
<65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A

Urology Physician Overview

How AFFAN ZAFAR, M.D. fits within the Urology Physician landscape nationally.

13,350
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider

AFFAN ZAFAR, M.D.'s 23 claims are below the specialty average of 1,280.

Nearby Urology Physician Providers in Missouri

Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as ZAFAR.

Compare Urology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is AFFAN ZAFAR, M.D.'s specialty?
AFFAN ZAFAR, M.D. specializes in Urology Physician and practices in SAINT LOUIS, Missouri. Credentials: M.D..
How much does AFFAN ZAFAR, M.D. prescribe under Medicare Part D?
In 2023, AFFAN ZAFAR, M.D. wrote 23 Medicare Part D claims totaling $438 in drug costs for 14 beneficiaries.
Where is AFFAN ZAFAR, M.D. located?
AFFAN ZAFAR, M.D. is located at 1 BARNES JEWISH HOSPITAL PLZ, SAINT LOUIS, MO, 63110. Phone: (314) 362-5000.
What is AFFAN ZAFAR, M.D.'s NPI number?
AFFAN ZAFAR, M.D.'s National Provider Identifier (NPI) is 1669822136, issued on 06/15/2016.
How many Urology Physician providers are there in the US?
There are 13,350 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
Does AFFAN ZAFAR, M.D. accept Medicare?
AFFAN ZAFAR, M.D. appears in CMS Medicare data with 23 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AFFAN ZAFAR, M.D.'s credentials?
AFFAN ZAFAR, M.D.'s NPI is 1669822136 with credentials M.D.. 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