2026 NPPES data Internal Medicine Physician NPI 1891874962 M.D
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Marie Theresa Pimentel, M.D

Internal Medicine Physician in Mesa, Arizona. 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
7K
Medicare Part D claims · 831 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Marie Theresa Pimentel, M.D filed 7,301 Medicare Part D claims in 2023 as a Internal Medicine Physician in Mesa, Arizona, prescribing 85% generic.

7K
Part D claims, 2023
85%
generic prescribing

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.

Marie Theresa Pimentel, M.D's Medicare Part D volume vs every U.S. prescriber

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

7,301 Top 3% higher than 97% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

Marie Theresa Pimentel, M.D 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 Marie Theresa Pimentel, M.D?

Quality data not reported

NPI registry status

Active

Issued 11/02/2006

NPI 1891874962

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

7,301 169% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Arizona

How Internal Medicine Physician compares to other specialties among Arizona providers

Arizona providers

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

Pharmacist — 5.6%Pharmacist5.6%Behavior Technician — 5.6%Behavior Technician5.6%Family Nurse Practitioner — 4.3%Family Nurse Practitioner4.3%Physical Therapist — 4.2%Physical Therapist4.2%Speech-Language Pathologist — 3.5%Speech-Language Pathologist3.5%Student in an Organized Health Care Education/Training Program — 3.5%Student in an Organized Health Care Education/Training Program3.5%Internal Medicine Physician — 2.7%Internal Medicine Physician2.7%
Largest specialties in Arizona (% 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).

Marie Theresa Pimentel, M.D appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D credentials at 3048 E BASELINE RD, Mesa, AZ, 85204, with a listed phone of (480) 505-3276. NPI 1891874962 was issued on 11/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Pimentel 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 7,301 prescription claims written by this provider, covering 831 Medicare beneficiaries and totaling roughly $960K in drug spend, split 14% brand-name and 85% generic by claim count, with an opioid prescribing rate of 0.3%. 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

3048 E BASELINE RD
Mesa, AZ 85204

Provider Details

NPI 1891874962
Specialty Internal Medicine Physician
Credentials M.D
Gender Female
NPI Issued 11/02/2006

Brand vs generic prescribing mix · Typical

Marie Theresa Pimentel, M.D — brand share 14.0%
Internal Medicine Physician average

14% brand-name claims vs 85% generic, on 7,301 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.

7,301
Total Claims
$960K
Total Drug Cost
831
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
19,527
Total Day Supply
581,237
Brand vs Generic
14% brand / 85% generic
Brand Drug Cost
$850K
Generic Drug Cost
$105K
Opioid Claims
25 (0.3% rate)
Antibiotic Claims
69

Patient Demographics

Average Patient Age
75.7 years
Avg HCC Risk Score
1.50
Gender Split
74% female / 26% male
Age Distribution
<65: 44, 65-74: 324, 75-84: 347, 85+: 116

Top Prescribed Drugs (Medicare Part D)

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

What Marie Theresa Pimentel, M.D 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
Atorvastatin Calcium
595
Levothyroxine Sodium
436
Amlodipine Besylate
312
Metformin Hcl
301
Losartan Potassium
286
Lisinopril
281
Rosuvastatin Calcium
214
Gabapentin
146
Pantoprazole Sodium
133
Omeprazole
120

* 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 Marie Theresa Pimentel, M.D 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

Marie Theresa Pimentel, M.D's 7,301 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Arizona

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

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 Arizona 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 Marie Theresa Pimentel, M.D's specialty?
Marie Theresa Pimentel, M.D specializes in Internal Medicine Physician and practices in Mesa, Arizona. Credentials: M.D.
How much does Marie Theresa Pimentel, M.D prescribe under Medicare Part D?
In 2023, Marie Theresa Pimentel, M.D wrote 7,301 Medicare Part D claims totaling $960K in drug costs for 831 beneficiaries.
Where is Marie Theresa Pimentel, M.D located?
Marie Theresa Pimentel, M.D is located at 3048 E BASELINE RD, Mesa, AZ, 85204. Phone: (480) 505-3276.
What is Marie Theresa Pimentel, M.D's NPI number?
Marie Theresa Pimentel, M.D's National Provider Identifier (NPI) is 1891874962, issued on 11/02/2006.
Does Marie Theresa Pimentel, M.D prescribe more brand-name or generic drugs?
Marie Theresa Pimentel, M.D's prescribing is 14% brand-name and 85% generic drugs by claim count, with $850K in brand drug costs.
Does Marie Theresa Pimentel, M.D prescribe opioids?
Yes, Marie Theresa Pimentel, M.D had 25 opioid claims in 2023 with an opioid prescribing rate of 0.3%.
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 Marie Theresa Pimentel, M.D prescribe most often?
Based on 2023 Medicare Part D data, Marie Theresa Pimentel, M.D's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marie Theresa Pimentel, M.D accept Medicare?
Marie Theresa Pimentel, M.D appears in CMS Medicare data with 7,301 Part D claims and 831 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marie Theresa Pimentel, M.D's credentials?
Marie Theresa Pimentel, M.D's NPI is 1891874962 with credentials M.D. 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.