2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1255376752 M.D.
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MARIA IRUELA, M.D.

Geriatric Medicine (Internal Medicine) Physician in WINSTON SALEM, North Carolina. 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
11K
Medicare Part D claims · 362 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MARIA IRUELA, M.D. filed 11,110 Medicare Part D claims in 2023 as a Geriatric Medicine (Internal Medicine) Physician in WINSTON SALEM, North Carolina, prescribing 84% generic.

11K
Part D claims, 2023
84%
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.

MARIA IRUELA, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

11,110 Top 2% higher than 98% 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 certification likely (heuristic — not verified)

MARIA IRUELA, M.D. 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 MARIA IRUELA, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/18/2006

NPI 1255376752

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

11,110 150% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in North Carolina

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among North Carolina providers

North Carolina providers

Geriatric Medicine (Internal Medicine) Physician share within North Carolina

1. Geriatric Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Internal Medicine) Physician share within North Carolina

Specialty board-certification context

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

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

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

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

MARIA IRUELA, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider practicing in WINSTON SALEM, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1255376752. 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.

MARIA IRUELA, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding M.D. credentials at 2085 FRONTIS PLAZA BLVD, WINSTON SALEM, NC, 27103, with a listed phone of (336) 481-8655. NPI 1255376752 was issued on 06/18/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what IRUELA 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 11,110 prescription claims written by this provider, covering 362 Medicare beneficiaries and totaling roughly $618K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 1.9%. 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

2085 FRONTIS PLAZA BLVD
WINSTON SALEM, NC 27103

Provider Details

NPI 1255376752
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 06/18/2006

Hospital and facility affiliations

Facilities where MARIA IRUELA, M.D. 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.

NOVANT HEALTH MEDICAL GROUP, LLC
JAMESTOWN, NC

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

MARIA IRUELA, M.D. — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 11,110 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.

11,110
Total Claims
$618K
Total Drug Cost
362
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,345
Total Day Supply
307,522
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$389K
Generic Drug Cost
$227K
Opioid Claims
213 (1.9% rate)
Antibiotic Claims
353

Patient Demographics

Average Patient Age
86.1 years
Avg HCC Risk Score
1.89
Gender Split
73% female / 27% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
570
Amlodipine Besylate
382
Atorvastatin Calcium
368
Furosemide
365
Eliquis
Apixaban
359
Metoprolol Succinate
332
Gabapentin
324
Sertraline Hcl
301
Lisinopril
264
Potassium Chloride
259

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

Geriatric Medicine (Internal Medicine) Physician Overview

How MARIA IRUELA, M.D. fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

MARIA IRUELA, M.D.'s 11,110 claims are above the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in North Carolina

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

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

Frequently Asked Questions

What is MARIA IRUELA, M.D.'s specialty?
MARIA IRUELA, M.D. specializes in Geriatric Medicine (Internal Medicine) Physician and practices in WINSTON SALEM, North Carolina. Credentials: M.D..
How much does MARIA IRUELA, M.D. prescribe under Medicare Part D?
In 2023, MARIA IRUELA, M.D. wrote 11,110 Medicare Part D claims totaling $618K in drug costs for 362 beneficiaries.
Where is MARIA IRUELA, M.D. located?
MARIA IRUELA, M.D. is located at 2085 FRONTIS PLAZA BLVD, WINSTON SALEM, NC, 27103. Phone: (336) 481-8655.
What is MARIA IRUELA, M.D.'s NPI number?
MARIA IRUELA, M.D.'s National Provider Identifier (NPI) is 1255376752, issued on 06/18/2006.
Does MARIA IRUELA, M.D. prescribe more brand-name or generic drugs?
MARIA IRUELA, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $389K in brand drug costs.
Does MARIA IRUELA, M.D. prescribe opioids?
Yes, MARIA IRUELA, M.D. had 213 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does MARIA IRUELA, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARIA IRUELA, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Amlodipine Besylate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIA IRUELA, M.D. accept Medicare?
MARIA IRUELA, M.D. appears in CMS Medicare data with 11,110 Part D claims and 362 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIA IRUELA, M.D.'s credentials?
MARIA IRUELA, M.D.'s NPI is 1255376752 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