NPI registry status
Active
2026 NPPES data Transplant Surgery Physician NPI 1659312502 MD
Verify on CMS → Warren Maley, MD
Transplant Surgery Physician in Philadelphia, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,026 in Transplant Surgery 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
475
Medicare Part D claims · 41 beneficiaries · Transplant Surgery Physician avg: 275
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Warren Maley, MD filed 475 Medicare Part D claims in 2023 as a Transplant Surgery Physician in Philadelphia, Pennsylvania.
- 475
- 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.
Warren Maley, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
475 Top 38% higher than 62% of 1,370,886 prescribers
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)
Warren Maley, 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 Warren Maley, MD?
Quality data not reportedPrimary specialty
Transplant Surgery Physician
Medicare Part D claims
475 73% vs specialty avg
Specialty distribution in Pennsylvania
How Transplant Surgery Physician compares to other specialties among Pennsylvania 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 Transplant Surgery 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).
Warren Maley, MD appears in the CMS NPPES registry as a Transplant Surgery Physician provider holding MD credentials at 1100 WALNUT ST, Philadelphia, PA, 19107, with a listed phone of (215) 955-6750. NPI 1659312502 was issued on 06/10/2006.
Medicare Part D records for calendar year 2023 show 475 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $172K in drug spend.
Transplant Surgery Physician is a narrow specialty nationwide, with 1,026 enrolled providers across 48 states and an average of 275 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
Provider Details
| NPI | 1659312502 |
|---|---|
| Specialty | Transplant Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/10/2006 |
Hospital and facility affiliations
Facilities where Warren Maley, 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.
Jefferson University Physicians
Philadelphia, PA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Pennsylvania PA-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Warren Maley, MD. To verify Warren Maley, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
475
Total Claims
$172K
Total Drug Cost
41
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 634
- Total Day Supply
- 18,584
- Generic Drug Cost
- $38K
- Antibiotic Claims
- 41
Patient Demographics
- Average Patient Age
- 65.3 years
- Avg HCC Risk Score
- 4.02
- Gender Split
- 46% female / 54% male
- Age Distribution
- <65: 16, 65-74: 21, 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.
What Warren Maley, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ursodiol
Ursodiol
54 claims
- Pantoprazole Sodium
Pantoprazole Sodium
47 claims
- Gabapentin
Gabapentin
44 claims
- Furosemide
Furosemide
34 claims
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
34 claims
- Atovaquone
Atovaquone
22 claims
- Vemlidy
Vemlidy
22 claims
- Tamsulosin Hcl 14
Tamsulosin Hcl
14 claims
| Drug | Claims |
|---|---|
| Ursodiol | 54 |
| Pantoprazole Sodium | 47 |
| Gabapentin | 44 |
| Furosemide | 34 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 34 |
| Atovaquone | 22 |
| Vemlidy Tenofovir Alafenamide | 22 |
| Tamsulosin Hcl | 14 |
| Valganciclovir Hcl | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Transplant Surgery Physician Overview
How Warren Maley, MD fits within the Transplant Surgery Physician landscape nationally.
1,026
Transplant Surgery Physician Providers in US
48
States with Transplant Surgery Physician
275
Avg Claims per Provider
Warren Maley, MD's 475 claims are above the specialty average of 275.
Nearby Transplant Surgery Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Maley.
Mohamed Al-Askari
Pittsburgh, PA
Dr. Kenneth Andreoni
M.D.
Philadelphia, PA
Dr. Francisco Badosa
M.D.
Wynnewood, PA
Dr. Adam Bodzin
M.D.
Philadelphia, PA
Geoffrey Bond
Pittsburgh, PA
Compare Transplant Surgery Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Transplant Surgery Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Warren Maley, MD's specialty? ▼
Warren Maley, MD specializes in Transplant Surgery Physician and practices in Philadelphia, Pennsylvania. Credentials: MD.
How much does Warren Maley, MD prescribe under Medicare Part D? ▼
In 2023, Warren Maley, MD wrote 475 Medicare Part D claims totaling $172K in drug costs for 41 beneficiaries.
Where is Warren Maley, MD located? ▼
Warren Maley, MD is located at 1100 WALNUT ST, Philadelphia, PA, 19107. Phone: (215) 955-6750.
What is Warren Maley, MD's NPI number? ▼
Warren Maley, MD's National Provider Identifier (NPI) is 1659312502, issued on 06/10/2006.
How many Transplant Surgery Physician providers are there in the US? ▼
There are 1,026 Transplant Surgery Physician providers across 48 states in the US. The average Transplant Surgery Physician provider writes 275 Medicare Part D claims per year.
What drugs does Warren Maley, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Warren Maley, MD's most frequently prescribed drugs include Ursodiol, Pantoprazole Sodium, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Warren Maley, MD accept Medicare? ▼
Warren Maley, MD appears in CMS Medicare data with 475 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Warren Maley, MD's credentials? ▼
Warren Maley, MD's NPI is 1659312502 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 (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
Compiled from official public sources by the PlainDoctor editorial team.