NPI registry status
Active
2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1376251314
Verify on CMS → Heather Grant
Endocrinology, Diabetes & Metabolism 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 7,852 in Endocrinology, Diabetes & Metabolism 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
383
Medicare Part D claims · 96 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
30%
generic claims · 62% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Heather Grant filed 383 Medicare Part D claims in 2023 as a Endocrinology, Diabetes & Metabolism Physician in Dallas, Texas, prescribing 30% generic.
- 383
- Part D claims, 2023
- 30%
- 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.
Heather Grant's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
383 Top 43% higher than 57% of 1,370,886 prescribers
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)
Heather Grant 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 Heather Grant?
Quality data not reportedPrimary specialty
Endocrinology, Diabetes & Metabolism Physician
Medicare Part D claims
383 85% vs specialty avg
Specialty distribution in Texas
How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Endocrinology, Diabetes & Metabolism Physician. Verify directly:
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).
Heather Grant appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider at 5323 HARRY HINES BLVD, Dallas, TX, 75390, with a listed phone of (214) 645-2800. NPI 1376251314 was issued on 11/08/2022.
Medicare Part D records for calendar year 2023 show 383 prescription claims written by this provider, covering 96 Medicare beneficiaries and totaling roughly $267K in drug spend, split 62% brand-name and 30% generic by claim count.
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
Provider Details
| NPI | 1376251314 |
|---|---|
| Specialty | Endocrinology, Diabetes & Metabolism Physician |
| Gender | Female |
| NPI Issued | 11/08/2022 |
Hospital and facility affiliations
Facilities where Heather Grant 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.
University OF Texas Southwestern Medical Center AT Dallas
Dallas, TX
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Heather Grant. To verify Heather Grant'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 · Brand-heavy
Heather Grant - brand share 62.0%
Endocrinology, Diabetes & Metabolism Physician average
62% brand-name claims vs 30% generic, on 383 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.
383
Total Claims
$267K
Total Drug Cost
96
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 653
- Total Day Supply
- 19,205
- Brand vs Generic
- 62% brand / 30% generic
- Brand Drug Cost
- $242K
- Generic Drug Cost
- $18K
Patient Demographics
- Average Patient Age
- 69.1 years
- Avg HCC Risk Score
- 1.98
- Gender Split
- 43% female / 57% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Heather Grant prescribes most
Top Medicare Part D drugs by claim count, 2023
- Mounjaro
Mounjaro
40 claims
- Jardiance
Jardiance
35 claims
- Trulicity
Trulicity
32 claims
- Ozempic
Ozempic
29 claims
- Xultophy 100-3.6
Xultophy 100-3.6
17 claims
- Lisinopril 15
Lisinopril
15 claims
- Levothyroxine Sodium 13
Levothyroxine Sodium
13 claims
- Atorvastatin Calcium 12
Atorvastatin Calcium
12 claims
| Drug | Claims |
|---|---|
| Mounjaro Tirzepatide | 40 |
| Jardiance Empagliflozin | 35 |
| Trulicity Dulaglutide | 32 |
| Ozempic Semaglutide | 29 |
| Xultophy 100-3.6 Insulin Degludec/Liraglutide | 17 |
| Lisinopril | 15 |
| Levothyroxine Sodium | 13 |
| Atorvastatin Calcium | 12 |
| Metformin Hcl Er Metformin Hcl | 12 |
| Synjardy Xr Empagliflozin/Metformin Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Endocrinology, Diabetes & Metabolism Physician in TX →
All providers in Texas →
Compare specialties →
Endocrinology, Diabetes & Metabolism Physician Overview
How Heather Grant 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
Heather Grant's 383 claims are below the specialty average of 2,639.
Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Grant.
Dr. Nicola Abate
MD
Baytown, TX
Dr. Jessica Abramowitz
MD
Dallas, TX
Dr. Layla Abushamat
M.D., M.P.H.
Houston, TX
Dr. Luis Acosta
MD
Houston, TX
Dr. Stefanie Addington
M.D.
Frisco, TX
Compare Endocrinology, Diabetes & Metabolism 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 Endocrinology, Diabetes & Metabolism 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 Heather Grant's specialty? ▼
Heather Grant specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Dallas, Texas.
How much does Heather Grant prescribe under Medicare Part D? ▼
In 2023, Heather Grant wrote 383 Medicare Part D claims totaling $267K in drug costs for 96 beneficiaries.
Where is Heather Grant located? ▼
Heather Grant is located at 5323 HARRY HINES BLVD, Dallas, TX, 75390. Phone: (214) 645-2800.
What is Heather Grant's NPI number? ▼
Heather Grant's National Provider Identifier (NPI) is 1376251314, issued on 11/08/2022.
Does Heather Grant prescribe more brand-name or generic drugs? ▼
Heather Grant's prescribing is 62% brand-name and 30% generic drugs by claim count, with $242K 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 Heather Grant prescribe most often? ▼
Based on 2023 Medicare Part D data, Heather Grant's most frequently prescribed drugs include Mounjaro, Jardiance, Trulicity. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Heather Grant accept Medicare? ▼
Heather Grant appears in CMS Medicare data with 383 Part D claims and 96 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Heather Grant's credentials? ▼
Heather Grant's NPI is 1376251314. 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.
- 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.