2026 NPPES data Medical Oncology Physician NPI 1194713495 MD
Verify on CMS →

Maysa Abu-Khalaf, MD

Medical Oncology 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 3,815 in Medical Oncology 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
135
Medicare Part D claims · 56 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$193.85
3 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Maysa Abu-Khalaf, MD filed 135 Medicare Part D claims in 2023 as a Medical Oncology Physician in Philadelphia, Pennsylvania, prescribing 91% generic.

135
Part D claims, 2023
91%
generic prescribing
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.

Maysa Abu-Khalaf, MD's Medicare Part D volume vs every U.S. prescriber

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

135 35th percentile higher than 35% 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. 2K+: 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)

Maysa Abu-Khalaf, 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 Maysa Abu-Khalaf, MD?

Quality data not reported

NPI registry status

Active

Issued 10/11/2005

NPI 1194713495

Primary specialty

Medical Oncology Physician

Niche

3,815 US NPIs in this specialty

Medicare Part D claims

135 80% vs specialty avg

2023 prescription claims

Specialty avg: 689

Specialty distribution in Pennsylvania

How Medical Oncology Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers
Student in an Organized Health Care Education/Training Program - 5.6%Student in an Organized Health Care Education/Training Program5.6%Pharmacist - 5%Pharmacist5%Physical Therapist - 4.9%Physical Therapist4.9%Mental Health Counselor - 3.9%Mental Health Counselor3.9%Internal Medicine Physician - 3.3%Internal Medicine Physician3.3%Professional Counselor - 3.2%Professional Counselor3.2%Medical Oncology Physician - 0.1%Medical Oncology Physician0.1%
Largest specialties in Pennsylvania (% of in-state 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 Medical Oncology 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).

Maysa Abu-Khalaf, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 925 CHESTNUT ST, Philadelphia, PA, 19107, with a listed phone of (215) 955-8874. NPI 1194713495 was issued on 10/11/2005.

Medicare Part D records for calendar year 2023 show 135 prescription claims written by this provider, covering 56 Medicare beneficiaries and totaling roughly $180K in drug spend, split 9% brand-name and 91% generic by claim count.

Medical Oncology Physician is a narrow specialty nationwide, with 3,815 enrolled providers across 53 states and an average of 689 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

925 CHESTNUT ST
Philadelphia, PA 19107

Provider Details

NPI 1194713495
Specialty Medical Oncology Physician
Credentials MD
Gender Female
NPI Issued 10/11/2005

Hospital and facility affiliations

Facilities where Maysa Abu-Khalaf, 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).

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 Maysa Abu-Khalaf, MD. Source: openpaymentsdata.cms.gov.

Total received

$194

Largest payer

Hologic Sales and Service, LLC

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.

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 Maysa Abu-Khalaf, MD. To verify Maysa Abu-Khalaf, 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.

Brand vs generic prescribing mix · Generic-heavy

Maysa Abu-Khalaf, MD - brand share 9.0%
Medical Oncology Physician average

9% brand-name claims vs 91% generic, on 135 2023 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 2023.

135
Total Claims
$180K
Total Drug Cost
56
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
315
Total Day Supply
9,323
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$171K
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.58

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Maysa Abu-Khalaf, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Anastrozole
66
Exemestane
27
Letrozole
16

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

Medical Oncology Physician Overview

How Maysa Abu-Khalaf, MD fits within the Medical Oncology Physician landscape nationally.

3,815
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider

Maysa Abu-Khalaf, MD's 135 claims are below the specialty average of 689.

Nearby Medical Oncology Physician Providers in Pennsylvania

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

Compare Medical Oncology 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 Medical Oncology 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.

Frequently Asked Questions

What is Maysa Abu-Khalaf, MD's specialty?
Maysa Abu-Khalaf, MD specializes in Medical Oncology Physician and practices in Philadelphia, Pennsylvania. Credentials: MD.
How much does Maysa Abu-Khalaf, MD prescribe under Medicare Part D?
In 2023, Maysa Abu-Khalaf, MD wrote 135 Medicare Part D claims totaling $180K in drug costs for 56 beneficiaries.
Where is Maysa Abu-Khalaf, MD located?
Maysa Abu-Khalaf, MD is located at 925 CHESTNUT ST, Philadelphia, PA, 19107. Phone: (215) 955-8874.
What is Maysa Abu-Khalaf, MD's NPI number?
Maysa Abu-Khalaf, MD's National Provider Identifier (NPI) is 1194713495, issued on 10/11/2005.
Does Maysa Abu-Khalaf, MD prescribe more brand-name or generic drugs?
Maysa Abu-Khalaf, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $171K in brand drug costs.
How many Medical Oncology Physician providers are there in the US?
There are 3,815 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does Maysa Abu-Khalaf, MD prescribe most often?
Based on 2023 Medicare Part D data, Maysa Abu-Khalaf, MD's most frequently prescribed drugs include Anastrozole, Exemestane, Letrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Maysa Abu-Khalaf, MD accept Medicare?
Maysa Abu-Khalaf, MD appears in CMS Medicare data with 135 Part D claims and 56 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Maysa Abu-Khalaf, MD's credentials?
Maysa Abu-Khalaf, MD's NPI is 1194713495 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.

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 May 2026.