2026 NPPES data Internal Medicine Physician NPI 1235781154 MD
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UMAMA ZAREEN, MD

Internal Medicine Physician in FARGO, North Dakota. 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
465
Medicare Part D claims · 210 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

UMAMA ZAREEN, MD filed 465 Medicare Part D claims in 2023 as a Internal Medicine Physician in FARGO, North Dakota, prescribing 89% generic.

465
Part D claims, 2023
89%
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.

UMAMA ZAREEN, MD's Medicare Part D volume vs every U.S. prescriber

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

465 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)

UMAMA ZAREEN, 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 UMAMA ZAREEN, MD?

Quality data not reported

NPI registry status

Active

Issued 07/11/2019

NPI 1235781154

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

465 83% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in North Dakota

How Internal Medicine Physician compares to other specialties among North Dakota providers

North Dakota providers

Internal Medicine Physician share within North Dakota

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within North Dakota

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).

UMAMA ZAREEN, MD is a Internal Medicine Physician provider practicing in FARGO, North Dakota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1235781154. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

UMAMA ZAREEN, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at SANFORD HEALTH, FARGO, ND, 58104, with a listed phone of (701) 234-5933. NPI 1235781154 was issued on 07/11/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZAREEN 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 465 prescription claims written by this provider, covering 210 Medicare beneficiaries and totaling roughly $44K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 5.6%. 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

SANFORD HEALTH
FARGO, ND 58104

Provider Details

NPI 1235781154
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 07/11/2019

Hospital and facility affiliations

Facilities where UMAMA ZAREEN, 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.

CENTRAL LOUISIANA PHYSICIANS, LLC
ALEXANDRIA, LA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Typical

UMAMA ZAREEN, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 465 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.

465
Total Claims
$44K
Total Drug Cost
210
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
545
Total Day Supply
11,069
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$24K
Generic Drug Cost
$19K
Opioid Claims
26 (5.6% rate)
Antibiotic Claims
127

Patient Demographics

Average Patient Age
71.2 years
Avg HCC Risk Score
2.52
Gender Split
51% female / 49% male
Age Distribution
<65: 45, 65-74: 82, 75-84: 60, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pantoprazole Sodium
28
Levofloxacin
27
Prednisone
26
Rosuvastatin Calcium
25
Eliquis
Apixaban
17
Oxycodone Hcl
16
Azithromycin
15
Cefuroxime
Cefuroxime Axetil
15
Furosemide
15
Amlodipine Besylate
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 UMAMA ZAREEN, 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

UMAMA ZAREEN, MD's 465 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in North Dakota

Other clinicians with the same primary specialty enrolled in North Dakota, drawn from the same CMS NPPES roster as ZAREEN.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is UMAMA ZAREEN, MD's specialty?
UMAMA ZAREEN, MD specializes in Internal Medicine Physician and practices in FARGO, North Dakota. Credentials: MD.
How much does UMAMA ZAREEN, MD prescribe under Medicare Part D?
In 2023, UMAMA ZAREEN, MD wrote 465 Medicare Part D claims totaling $44K in drug costs for 210 beneficiaries.
Where is UMAMA ZAREEN, MD located?
UMAMA ZAREEN, MD is located at SANFORD HEALTH, FARGO, ND, 58104. Phone: (701) 234-5933.
What is UMAMA ZAREEN, MD's NPI number?
UMAMA ZAREEN, MD's National Provider Identifier (NPI) is 1235781154, issued on 07/11/2019.
Does UMAMA ZAREEN, MD prescribe more brand-name or generic drugs?
UMAMA ZAREEN, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $24K in brand drug costs.
Does UMAMA ZAREEN, MD prescribe opioids?
Yes, UMAMA ZAREEN, MD had 26 opioid claims in 2023 with an opioid prescribing rate of 5.6%.
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 UMAMA ZAREEN, MD prescribe most often?
Based on 2023 Medicare Part D data, UMAMA ZAREEN, MD's most frequently prescribed drugs include Pantoprazole Sodium, Levofloxacin, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does UMAMA ZAREEN, MD accept Medicare?
UMAMA ZAREEN, MD appears in CMS Medicare data with 465 Part D claims and 210 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify UMAMA ZAREEN, MD's credentials?
UMAMA ZAREEN, MD's NPI is 1235781154 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