2026 NPPES data Pediatric Hematology & Oncology Physician NPI 1003855727 MD
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ROBERT WIMMER, MD

Pediatric Hematology & Oncology Physician in PHILADELPHIA, Pennsylvania. 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
30
Medicare Part D claims · Pediatric Hematology & Oncology Physician avg: 92

What the federal data shows

ROBERT WIMMER, MD filed 30 Medicare Part D claims in 2023 as a Pediatric Hematology & Oncology Physician in PHILADELPHIA, Pennsylvania.

30
Part D claims, 2023

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.

ROBERT WIMMER, MD's Medicare Part D volume vs every U.S. prescriber

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

30 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-eligible specialty (heuristic — not verified)

ROBERT WIMMER, 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 ROBERT WIMMER, MD?

Quality data not reported

NPI registry status

Active

Issued 06/06/2006

NPI 1003855727

Primary specialty

Pediatric Hematology & Oncology Physician

Niche

2,568 US NPIs in this specialty

Medicare Part D claims

30 67% vs specialty avg

2023 prescription claims

Specialty avg: 92

Specialty distribution in Pennsylvania

How Pediatric Hematology & Oncology Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Pediatric Hematology & Oncology Physician share within Pennsylvania

1. Pediatric Hematology & Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pediatric Hematology & Oncology Physician share within Pennsylvania

Specialty board-certification context

Estimated specialty board-certified rate — Pediatric Hematology & Oncology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pediatric Hematology & Oncology Physician ABMS/AOA estimate

Est. board-certified rate (Pediatric Hematology & Oncology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pediatric Hematology & Oncology 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).

ROBERT WIMMER, MD appears in the CMS NPPES registry as a Pediatric Hematology & Oncology Physician provider holding MD credentials at 5501 OLD YORK RD, PHILADELPHIA, PA, 19141, with a listed phone of (215) 456-7170. NPI 1003855727 was issued on 06/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WIMMER 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 30 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $19K 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.

Pediatric Hematology & Oncology Physician is a narrow specialty nationwide, with 2,568 enrolled providers across 52 states and an average of 92 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

5501 OLD YORK RD
PHILADELPHIA, PA 19141

Provider Details

NPI 1003855727
Specialty Pediatric Hematology & Oncology Physician
Credentials MD
Gender Male
NPI Issued 06/06/2006

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 ROBERT WIMMER, MD. To verify ROBERT WIMMER, 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.

30
Total Claims
$19K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
84
Total Day Supply
2,520
Generic Drug Cost
$16K

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
0.72

Pediatric Hematology & Oncology Physician Overview

How ROBERT WIMMER, MD fits within the Pediatric Hematology & Oncology Physician landscape nationally.

2,568
Pediatric Hematology & Oncology Physician Providers in US
52
States with Pediatric Hematology & Oncology Physician
92
Avg Claims per Provider

ROBERT WIMMER, MD's 30 claims are below the specialty average of 92.

Nearby Pediatric Hematology & Oncology Physician Providers in Pennsylvania

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

Compare Pediatric Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROBERT WIMMER, MD's specialty?
ROBERT WIMMER, MD specializes in Pediatric Hematology & Oncology Physician and practices in PHILADELPHIA, Pennsylvania. Credentials: MD.
How much does ROBERT WIMMER, MD prescribe under Medicare Part D?
In 2023, ROBERT WIMMER, MD wrote 30 Medicare Part D claims totaling $19K in drug costs for N/A beneficiaries.
Where is ROBERT WIMMER, MD located?
ROBERT WIMMER, MD is located at 5501 OLD YORK RD, PHILADELPHIA, PA, 19141. Phone: (215) 456-7170.
What is ROBERT WIMMER, MD's NPI number?
ROBERT WIMMER, MD's National Provider Identifier (NPI) is 1003855727, issued on 06/06/2006.
How many Pediatric Hematology & Oncology Physician providers are there in the US?
There are 2,568 Pediatric Hematology & Oncology Physician providers across 52 states in the US. The average Pediatric Hematology & Oncology Physician provider writes 92 Medicare Part D claims per year.
Does ROBERT WIMMER, MD accept Medicare?
ROBERT WIMMER, MD appears in CMS Medicare data with 30 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT WIMMER, MD's credentials?
ROBERT WIMMER, MD's NPI is 1003855727 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