2026 NPPES data Internal Medicine Physician NPI 1194012203 MD
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Masooma Rehmtulla, MD

Internal Medicine Physician in Worcester, Massachusetts. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 172,858 in Internal Medicine 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
404
Medicare Part D claims · 273 beneficiaries · Internal Medicine Physician avg: 3K
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Masooma Rehmtulla, MD filed 404 Medicare Part D claims in 2023 as a Internal Medicine Physician in Worcester, Massachusetts.

404
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.

Masooma Rehmtulla, MD's Medicare Part D volume vs every U.S. prescriber

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

404 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 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 certification likely (heuristic — not verified)

Masooma Rehmtulla, 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 Masooma Rehmtulla, MD?

Quality data not reported

NPI registry status

Active

Issued 07/10/2011

NPI 1194012203

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

404 85% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Massachusetts

How Internal Medicine Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Largest specialties in Massachusetts (% of in-state providers)

Mental Health Counselor — 8.3%Mental Health Counselor8.3%Clinical Social Worker — 7.8%Clinical Social Worker7.8%Student in an Organized Health Care Education/Training Program — 6.2%Student in an Organized Health Care Education/Training Program6.2%Behavior Technician — 4.9%Behavior Technician4.9%Counselor — 4.3%Counselor4.3%Internal Medicine Physician — 3.7%Internal Medicine Physician3.7%
Largest specialties in Massachusetts (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

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

Masooma Rehmtulla, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 366 SHREWSBURY ST, Worcester, MA, 01604, with a listed phone of (508) 595-2700. NPI 1194012203 was issued on 07/10/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Rehmtulla 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 404 prescription claims written by this provider, covering 273 Medicare beneficiaries and totaling roughly $11K 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

366 SHREWSBURY ST
Worcester, MA 01604

Provider Details

NPI 1194012203
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 07/10/2011

Hospital and facility affiliations

Facilities where Masooma Rehmtulla, 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.

Reliant Medical Group Inc
Worcester, MA

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 — Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 — they are NOT specific to Masooma Rehmtulla, MD. To verify Masooma Rehmtulla, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM 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 Massachusetts 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.

404
Total Claims
$11K
Total Drug Cost
273
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
413
Total Day Supply
6,281
Generic Drug Cost
$5K
Antibiotic Claims
127

Patient Demographics

Average Patient Age
69.4 years
Avg HCC Risk Score
1.49
Gender Split
67% female / 33% male
Age Distribution
<65: 73, 65-74: 102, 75-84: 64, 85+: 34

Top Prescribed Drugs (Medicare Part D)

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

What Masooma Rehmtulla, 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
Prednisone
42
Doxycycline Monohydrate
38
Diclofenac Sodium
28
Naproxen
22
Albuterol Sulfate Hfa
Albuterol Sulfate
21
Fluticasone Propionate
20
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
16
Cefpodoxime Proxetil
16
Cyclobenzaprine Hcl
16
Cephalexin
14

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

Internal Medicine Physician Overview

How Masooma Rehmtulla, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Masooma Rehmtulla, MD's 404 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Massachusetts

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

Compare Internal Medicine 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 Massachusetts medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine 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 Masooma Rehmtulla, MD's specialty?
Masooma Rehmtulla, MD specializes in Internal Medicine Physician and practices in Worcester, Massachusetts. Credentials: MD.
How much does Masooma Rehmtulla, MD prescribe under Medicare Part D?
In 2023, Masooma Rehmtulla, MD wrote 404 Medicare Part D claims totaling $11K in drug costs for 273 beneficiaries.
Where is Masooma Rehmtulla, MD located?
Masooma Rehmtulla, MD is located at 366 SHREWSBURY ST, Worcester, MA, 01604. Phone: (508) 595-2700.
What is Masooma Rehmtulla, MD's NPI number?
Masooma Rehmtulla, MD's National Provider Identifier (NPI) is 1194012203, issued on 07/10/2011.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Masooma Rehmtulla, MD prescribe most often?
Based on 2023 Medicare Part D data, Masooma Rehmtulla, MD's most frequently prescribed drugs include Prednisone, Doxycycline Monohydrate, Diclofenac Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Masooma Rehmtulla, MD accept Medicare?
Masooma Rehmtulla, MD appears in CMS Medicare data with 404 Part D claims and 273 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Masooma Rehmtulla, MD's credentials?
Masooma Rehmtulla, MD's NPI is 1194012203 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

Compiled from official public sources by the PlainDoctor editorial team.