NPI registry status
Active
2026 NPPES data Urology Physician NPI 1992943237 MD
Verify on CMS → William Leitner, MD
Urology Physician in Birmingham, Alabama.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 13,606 in Urology 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
66
Medicare Part D claims · Urology Physician avg: 1K
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
William Leitner, MD filed 66 Medicare Part D claims in 2024 as a Urology Physician in Birmingham, Alabama, prescribing 79% generic.
- 66
- Part D claims, 2024
- 79%
- generic prescribing
- ≥0th
- 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 William Leitner, 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 1992943237), first enumerated 01/24/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 66 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
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- 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 1992943237 · Urology Physician
NPI-10 · ENUM-MID · TAX-MID · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1992943237
- ENUM-MID 2009
- TAX-MID 14K Urology Physician
- RX-TRACE 66
- BOOK-THIN 168 in Alabama
- PHOTO-ENUM John Bishay · 2009
William Leitner, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
66 ≥ 0th percentile 0% 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-eligible specialty (heuristic, not verified)
William Leitner, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about William Leitner, MD?
Quality data not reportedPrimary specialty
Urology Physician
Medicare Part D claims
66 95% vs specialty avg
Specialty distribution in Alabama
How Urology Physician compares to other specialties among Alabama 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 Urology 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 | 1992943237 |
|---|---|
| Specialty | Urology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 01/24/2009 |
Brand vs generic prescribing mix · Typical
William Leitner, MD - brand share 21.0%
Urology Physician average
21% brand-name claims vs 79% generic, on 66 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
66
Total Claims
$19K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 163.1
- Total Day Supply
- 4,793
- Brand vs Generic
- 21% brand / 79% generic
- Brand Drug Cost
- $17K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 88.0 years
- Avg HCC Risk Score
- 1.71
Urology Physician Overview
How William Leitner, MD fits within the Urology Physician landscape nationally.
13,606
Urology Physician Providers in US
54
States with Urology Physician
1,354
Avg Claims per Provider
William Leitner, MD's 66 claims are below the specialty average of 1,354.
Nationwide Urology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Leitner, both outside Alabama so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Urology Physician Providers in Alabama
Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as Leitner.
One of 168 Urology Physician providers enrolled in Alabama, 5 are shown here.
Dr. George Adams
M.D.
Homewood, AL
Dr. Himanshu Aggarwal
M.D., M.S.
Montgomery, AL
Dr. Tarek Ajami Fardoun
MD
Mobile, AL
Dr. Kenneth Aldridge
MD
Tuscaloosa, AL
Dr. Sergey Ananyev
M.D.
Decatur, AL
Compare Urology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Leitner, MD's specialty? ▼
William Leitner, MD specializes in Urology Physician and practices in Birmingham, Alabama. Credentials: MD.
How much does William Leitner, MD prescribe under Medicare Part D? ▼
In 2024, William Leitner, MD wrote 66 Medicare Part D claims totaling $19K in drug costs for N/A beneficiaries.
Where is William Leitner, MD located? ▼
William Leitner, MD is located at 59 CROSS CREEK DR W, Birmingham, AL, 35213. Phone: (205) 870-0491.
What is William Leitner, MD's NPI number? ▼
William Leitner, MD's National Provider Identifier (NPI) is 1992943237, issued on 01/24/2009.
Does William Leitner, MD prescribe more brand-name or generic drugs? ▼
William Leitner, MD's prescribing is 21% brand-name and 79% generic drugs by claim count, with $17K in brand drug costs.
How many Urology Physician providers are there in the US? ▼
There are 13,606 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,354 Medicare Part D claims per year.
Does William Leitner, MD accept Medicare? ▼
William Leitner, MD appears in CMS Medicare data with 66 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Leitner, MD's credentials? ▼
William Leitner, MD's NPI is 1992943237 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.