2026 NPPES data Hematology & Oncology Physician NPI 1841385226 MD
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PETER GRAHAM, MD

Hematology & Oncology Physician in PENNINGTON, New Jersey. 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
72
Medicare Part D claims · 30 beneficiaries · Hematology & Oncology Physician avg: 847

What the federal data shows

PETER GRAHAM, MD filed 72 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in PENNINGTON, New Jersey.

72
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.

PETER GRAHAM, MD's Medicare Part D volume vs every U.S. prescriber

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

72 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)

PETER GRAHAM, 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 PETER GRAHAM, MD?

Quality data not reported

NPI registry status

Active

Issued 10/03/2006

NPI 1841385226

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

72 91% vs specialty avg

2023 prescription claims

Specialty avg: 847

Specialty distribution in New Jersey

How Hematology & Oncology Physician compares to other specialties among New Jersey providers

New Jersey providers

Hematology & Oncology Physician share within New Jersey

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

Specialty board-certification context

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

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

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

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

PETER GRAHAM, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 2 CAPITAL WAY STE 220, PENNINGTON, NJ, 08534, with a listed phone of (609) 303-0747. NPI 1841385226 was issued on 10/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRAHAM 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 72 prescription claims written by this provider, covering 30 Medicare beneficiaries and totaling roughly $96K 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.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

2 CAPITAL WAY STE 220
PENNINGTON, NJ 08534

Provider Details

NPI 1841385226
Specialty Hematology & Oncology Physician
Credentials MD
Gender Male
NPI Issued 10/03/2006

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

72
Total Claims
$96K
Total Drug Cost
30
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
140
Total Day Supply
3,758
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
1.88
Gender Split
43% female / 57% male
Age Distribution
<65: 0, 65-74: 17, 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
Ondansetron Hcl
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Hematology & Oncology Physician Overview

How PETER GRAHAM, MD fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

PETER GRAHAM, MD's 72 claims are below the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as GRAHAM.

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

Frequently Asked Questions

What is PETER GRAHAM, MD's specialty?
PETER GRAHAM, MD specializes in Hematology & Oncology Physician and practices in PENNINGTON, New Jersey. Credentials: MD.
How much does PETER GRAHAM, MD prescribe under Medicare Part D?
In 2023, PETER GRAHAM, MD wrote 72 Medicare Part D claims totaling $96K in drug costs for 30 beneficiaries.
Where is PETER GRAHAM, MD located?
PETER GRAHAM, MD is located at 2 CAPITAL WAY STE 220, PENNINGTON, NJ, 08534. Phone: (609) 303-0747.
What is PETER GRAHAM, MD's NPI number?
PETER GRAHAM, MD's National Provider Identifier (NPI) is 1841385226, issued on 10/03/2006.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does PETER GRAHAM, MD prescribe most often?
Based on 2023 Medicare Part D data, PETER GRAHAM, MD's most frequently prescribed drugs include Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PETER GRAHAM, MD accept Medicare?
PETER GRAHAM, MD appears in CMS Medicare data with 72 Part D claims and 30 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PETER GRAHAM, MD's credentials?
PETER GRAHAM, MD's NPI is 1841385226 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