2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1821173568 MD
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MARIA VARGAS, MD

Endocrinology, Diabetes & Metabolism Physician in TULSA, Oklahoma. 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
2K
Medicare Part D claims · 235 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
50%
generic claims · 50% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.393/100
▼ 4 pts below national avg 83.1 · [object Object]
Industry payments
$741.34
35 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARIA VARGAS, MD is a Endocrinology, Diabetes & Metabolism Physician ([object Object]) practicing in TULSA, Oklahoma with a Medicare Part D prescribing footprint of 2K claims across 235 beneficiaries — 50% brand-name prescribing . Their CMS MIPS Final Score of 79.393/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $741.34 across 35 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARIA VARGAS, MD reported a CMS MIPS final score of 79.393 out of 100, below the 83.1 national average, and filed 2,055 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARIA VARGAS, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

MARIA VARGAS, MD at a glance

Near national average

NPI registry status

Active

Issued 10/25/2006

NPI 1821173568

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

2,055 22% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

MIPS final score

79.393/100 3.7069999999999936% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Oklahoma

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Oklahoma providers

Oklahoma providers

Endocrinology, Diabetes & Metabolism Physician share within Oklahoma

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within Oklahoma

Medicare quality performance — MIPS

MARIA VARGAS, MD's 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

Near national average
MIPS Final Score
79.393/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 79.393/100 vs national avg 83.1

0%100%National avg83%79.4%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 79.393/100 vs national avg 83.1

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 VARGAS, MD is a Endocrinology, Diabetes & Metabolism Physician provider practicing in TULSA, Oklahoma, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1821173568. 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 VARGAS, MD appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding MD credentials at 10507 E 91ST ST STE 110, TULSA, OK, 74133, with a listed phone of (918) 307-3100. NPI 1821173568 was issued on 10/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what VARGAS 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 2,055 prescription claims written by this provider, covering 235 Medicare beneficiaries and totaling roughly $946K in drug spend, split 50% brand-name and 50% generic by claim count. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.393/100 for the 2023 performance year (Quality 77.7697, Cost 54.3735), compared with the national average of 83.1.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

10507 E 91ST ST STE 110
TULSA, OK 74133

Provider Details

NPI 1821173568
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials MD
Gender Female
NPI Issued 10/25/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.393
Final Score
Avg: 83.1
77.7697
Quality
54.3735
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARIA VARGAS, 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.

WARREN CLINIC INC
TULSA, OK

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 MARIA VARGAS, MD. Source: openpaymentsdata.cms.gov.

Total received

$741

Largest payer

Abbott Laboratories

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.

Brand vs generic prescribing mix · Brand-heavy

MARIA VARGAS, MD — brand share 50.0%
Specialty average (est.)

50% brand-name claims vs 50% generic, on 2,055 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.

2,055
Total Claims
$946K
Total Drug Cost
235
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,032
Total Day Supply
118,763
Brand vs Generic
50% brand / 50% generic
Brand Drug Cost
$889K
Generic Drug Cost
$26K

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
1.80
Gender Split
70% female / 30% male
Age Distribution
<65: 48, 65-74: 105, 75-84: 69, 85+: 13

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
243
Metformin Hcl
103
Novolog Flexpen
Insulin Aspart
96
Ozempic
Semaglutide
71
Alendronate Sodium
64
Trulicity
Dulaglutide
64
Lisinopril
51
Metformin Hcl Er
Metformin Hcl
50
Mounjaro
Tirzepatide
50
Pioglitazone Hcl
42

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

Endocrinology, Diabetes & Metabolism Physician Overview

How MARIA VARGAS, MD fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

MARIA VARGAS, MD's 2,055 claims are below the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Oklahoma

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

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARIA VARGAS, MD's specialty?
MARIA VARGAS, MD specializes in Endocrinology, Diabetes & Metabolism Physician and practices in TULSA, Oklahoma. Credentials: MD.
How much does MARIA VARGAS, MD prescribe under Medicare Part D?
In 2023, MARIA VARGAS, MD wrote 2,055 Medicare Part D claims totaling $946K in drug costs for 235 beneficiaries.
What is MARIA VARGAS, MD's Medicare quality score?
MARIA VARGAS, MD has a CMS MIPS Final Score of 79.393/100 (Quality: 77.7697, Cost: 54.3735). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARIA VARGAS, MD located?
MARIA VARGAS, MD is located at 10507 E 91ST ST STE 110, TULSA, OK, 74133. Phone: (918) 307-3100.
What is MARIA VARGAS, MD's NPI number?
MARIA VARGAS, MD's National Provider Identifier (NPI) is 1821173568, issued on 10/25/2006.
Does MARIA VARGAS, MD prescribe more brand-name or generic drugs?
MARIA VARGAS, MD's prescribing is 50% brand-name and 50% generic drugs by claim count, with $889K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does MARIA VARGAS, MD prescribe most often?
Based on 2023 Medicare Part D data, MARIA VARGAS, MD's most frequently prescribed drugs include Levothyroxine Sodium, Metformin Hcl, Novolog Flexpen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIA VARGAS, MD accept Medicare?
MARIA VARGAS, MD appears in CMS Medicare data with 2,055 Part D claims and 235 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIA VARGAS, MD's credentials?
MARIA VARGAS, MD's NPI is 1821173568 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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