NPI registry status
Active
2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1629262647 M.D
Verify on CMS → Hla Win, M.D
Endocrinology, Diabetes & Metabolism Physician in Antioch, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 7,871 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
810
Medicare Part D claims · 254 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
72%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Hla Win, M.D filed 810 Medicare Part D claims in 2023 as an Endocrinology, Diabetes & Metabolism Physician in Antioch, California, prescribing 72% generic.
- 810
- Part D claims, 2023
- 72%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥73rd
- pct by Part D claim volume (lower-bound band)
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.
CMS NPPES provider registry desk
NPI 1629262647 · Endocrinology, Diabetes & Metabolism Physician
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1629262647
- ENUM-MID 2007
- TAX-MID 8K Endocrinology, Diabetes
- RX-LIGHT 810
- BOOK-LIGHT 879 in California
- PHOTO-ENUM Coromoto Palermo · 2007
Hla Win, M.D's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
810 ≥ 73rd percentile 73% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Hla Win, 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 Hla Win, M.D?
Quality data not reportedPrimary specialty
Endocrinology, Diabetes & Metabolism Physician
Medicare Part D claims
810 69% vs specialty avg
Specialty distribution in California
How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among California 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).
Practice Address
Provider Details
| NPI | 1629262647 |
|---|---|
| Specialty | Endocrinology, Diabetes & Metabolism Physician |
| Credentials | M.D |
| Gender | Female |
| NPI Issued | 09/03/2007 |
Hospital and facility affiliations
Facilities where Hla Win, 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.
Permanente Medical Group Inc
Antioch, CA
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 - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Hla Win, M.D. To verify Hla Win, M.D's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Hla Win, M.D - brand share 23.0%
Endocrinology, Diabetes & Metabolism Physician average
23% brand-name claims vs 72% generic, on 810 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.
810
Total Claims
$162K
Total Drug Cost
254
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,325
- Total Day Supply
- 69,326
- Brand vs Generic
- 23% brand / 72% generic
- Brand Drug Cost
- $136K
- Generic Drug Cost
- $24K
Patient Demographics
- Average Patient Age
- 72.1 years
- Avg HCC Risk Score
- 1.71
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 31, 65-74: 125, 75-84: 81, 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 Hla Win, M.D prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
216 claims
- Methimazole
Methimazole
188 claims
- Humalog 59
Humalog
59 claims
- Cinacalcet Hcl 40
Cinacalcet Hcl
40 claims
- Hydrocortisone 30
Hydrocortisone
30 claims
- Testosterone 25
Testosterone
25 claims
- Calcitriol 23
Calcitriol
23 claims
- Insulin Glargine-Y… 18
Insulin Glargine-Yfgn
18 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 216 |
| Methimazole | 188 |
| Humalog Insulin Lispro | 59 |
| Cinacalcet Hcl | 40 |
| Hydrocortisone | 30 |
| Testosterone | 25 |
| Calcitriol | 23 |
| Insulin Glargine-Yfgn | 18 |
| Humalog Kwikpen U-100 Insulin Lispro | 16 |
| Prednisone | 15 |
* 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 CA →
All providers in California →
Compare specialties →
Endocrinology, Diabetes & Metabolism Physician Overview
How Hla Win, M.D fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.
7,871
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider
Hla Win, M.D's 810 claims are below the specialty average of 2,639.
Nationwide Endocrinology, Diabetes & Metabolism Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Win, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Endocrinology, Diabetes & Metabolism Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Win.
One of 879 Endocrinology, Diabetes & Metabolism Physician providers enrolled in California, 5 are shown here.
Dr. Anita Abraham
M.D.
Stockton, CA
Dr. Sallie Adams
M.D.
Roseville, CA
Ananta Addala
Palo Alto, CA
Dr. Helen Adelberg
M.D.
Encino, CA
Dr. David Aftergood
MD
Beverly Hills, CA
Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Hla Win, M.D's specialty? ▼
Hla Win, M.D specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Antioch, California. Credentials: M.D.
How much does Hla Win, M.D prescribe under Medicare Part D? ▼
In 2023, Hla Win, M.D wrote 810 Medicare Part D claims totaling $162K in drug costs for 254 beneficiaries.
Where is Hla Win, M.D located? ▼
Hla Win, M.D is located at 4501 SAND CREEK RD, Antioch, CA, 94531. Phone: (925) 813-3101.
What is Hla Win, M.D's NPI number? ▼
Hla Win, M.D's National Provider Identifier (NPI) is 1629262647, issued on 09/03/2007.
Does Hla Win, M.D prescribe more brand-name or generic drugs? ▼
Hla Win, M.D's prescribing is 23% brand-name and 72% generic drugs by claim count, with $136K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 7,871 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 Hla Win, M.D prescribe most often? ▼
Based on 2023 Medicare Part D data, Hla Win, M.D's most frequently prescribed drugs include Levothyroxine Sodium, Methimazole, Humalog. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hla Win, M.D accept Medicare? ▼
Hla Win, M.D appears in CMS Medicare data with 810 Part D claims and 254 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hla Win, M.D's credentials? ▼
Hla Win, M.D's NPI is 1629262647 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.
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.