NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1023091014 M.D.
Verify on CMS → Tanya Grun, M.D.
Family Medicine Physician in Dallas, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,640 in Family 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
842
Medicare Part D claims · 171 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
79%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
88.9/100
▲ 6 pts above national avg 83.1 · Above neutral
Industry payments
$237.64
11 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Tanya Grun, M.D. reported a CMS MIPS final score of 88.9/100 - above the 83.1 national average - and filed 842 Medicare Part D claims in 2023.
- 88.9/100
- MIPS score · +6 vs avg
- 842
- Part D claims, 2023
- 79%
- 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.
Tanya Grun, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
89 Top 44% higher than 56% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Tanya Grun, M.D. sits
This provider among family medicine physician peers
Across the 22,040 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Tanya Grun, M.D. writes more Part D claims than 31% of them and scores higher on MIPS quality than 56% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Tanya Grun, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Tanya Grun, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Tanya Grun, M.D.?
High performer (top quartile)Primary specialty
Family Medicine Physician
Medicare Part D claims
842 75% vs specialty avg
MIPS final score
88.9/100 5.8 pts vs avg
Specialty distribution in Texas
How Family Medicine Physician compares to other specialties among Texas providers
Medicare quality performance, MIPS
Tanya Grun, M.D.'s 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 88.9/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Family Medicine Physician) - 88.9/100 vs national avg 83.1
How MIPS and board certification work
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).
Tanya Grun, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 1220 RIVER BEND DR STE 250, Dallas, TX, 75247, with a listed phone of (800) 465-3203. NPI 1023091014 was issued on 11/22/2005.
Medicare Part D records for calendar year 2023 show 842 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $92K in drug spend, split 19% brand-name and 79% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 88.9/100 for the 2023 performance year (Quality 95.1, Cost 69.5), compared with the national average of 83.1.
Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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
Provider Details
| NPI | 1023091014 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 11/22/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
88.9016
Final Score
Avg: 83.1
95.1278
Quality
69.5015
Cost
Reporting: Individual
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 Tanya Grun, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$238
Largest payer
Amgen Inc.
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.
License & disciplinary context - Texas TMB 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 ~77K Texas medical licensees in 2023 - they are NOT specific to Tanya Grun, M.D.. To verify Tanya Grun, M.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Tanya Grun, M.D. - brand share 19.0%
Family Medicine Physician average
19% brand-name claims vs 79% generic, on 842 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.
842
Total Claims
$92K
Total Drug Cost
171
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,545
- Total Day Supply
- 43,535
- Brand vs Generic
- 19% brand / 79% generic
- Brand Drug Cost
- $77K
- Generic Drug Cost
- $14K
- Antibiotic Claims
- 39
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 1.01
- Gender Split
- 76% female / 24% male
- Age Distribution
- <65: 11, 65-74: 90, 75-84: 53, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Tanya Grun, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
49 claims
- Levothyroxine Sodium
Levothyroxine Sodium
42 claims
- Losartan Potassium
Losartan Potassium
27 claims
- Dextroamphetamine-…
Dextroamphetamine-Amphetamine
22 claims
- Trazodone Hcl
Trazodone Hcl
22 claims
- Gabapentin
Gabapentin
21 claims
- Amlodipine Besylate 17
Amlodipine Besylate
17 claims
- Mirtazapine 16
Mirtazapine
16 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 49 |
| Levothyroxine Sodium | 42 |
| Losartan Potassium | 27 |
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 22 |
| Trazodone Hcl | 22 |
| Gabapentin | 21 |
| Amlodipine Besylate | 17 |
| Mirtazapine | 16 |
| Rosuvastatin Calcium | 16 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Tanya Grun, M.D. fits within the Family Medicine Physician landscape nationally.
147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Tanya Grun, M.D.'s 842 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Grun.
Dr. Srinivasa Aaluri
MD
El Paso, TX
Dr. Maira Aamir
MD
Shenandoah, TX
Dr. Fakhrudin Aaseemah Mohamed
M.D
Allen, TX
Dr. So Abad
MD
Wichita Falls, TX
Yoseph Abadi
Richardson, TX
Compare Family 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 Texas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family 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.
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Frequently Asked Questions
What is Tanya Grun, M.D.'s specialty? ▼
Tanya Grun, M.D. specializes in Family Medicine Physician and practices in Dallas, Texas. Credentials: M.D..
How much does Tanya Grun, M.D. prescribe under Medicare Part D? ▼
In 2023, Tanya Grun, M.D. wrote 842 Medicare Part D claims totaling $92K in drug costs for 171 beneficiaries.
What is Tanya Grun, M.D.'s Medicare quality score? ▼
Tanya Grun, M.D. has a CMS MIPS Final Score of 88.9/100 (Quality: 95.1, Cost: 69.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Tanya Grun, M.D. located? ▼
Tanya Grun, M.D. is located at 1220 RIVER BEND DR STE 250, Dallas, TX, 75247. Phone: (800) 465-3203.
What is Tanya Grun, M.D.'s NPI number? ▼
Tanya Grun, M.D.'s National Provider Identifier (NPI) is 1023091014, issued on 11/22/2005.
Does Tanya Grun, M.D. prescribe more brand-name or generic drugs? ▼
Tanya Grun, M.D.'s prescribing is 19% brand-name and 79% generic drugs by claim count, with $77K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Tanya Grun, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Tanya Grun, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tanya Grun, M.D. accept Medicare? ▼
Tanya Grun, M.D. appears in CMS Medicare data with 842 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tanya Grun, M.D.'s credentials? ▼
Tanya Grun, M.D.'s NPI is 1023091014 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.