Thein Htay, M.D.
NPI 1861594228 · Internal Medicine Physician · Alhambra, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thein Htay, M.D. is a Internal Medicine Physician provider in Alhambra, CA (NPI 1861594228).
Provider details
- NPI number
- 1861594228
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A77109 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,513 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 722 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 720 | $133 |
| Thallium Tl-201 Thallous Chloride, Diagnostic, Per MillicurieA9505 | 380 | $37 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 127 | $211 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 118 | $94 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 124 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 982 | 269 |
| Atorvastatin Calcium | 898 | 238 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 700 | 198 |
| Rosuvastatin Calcium | 612 | 177 |
| Losartan Potassium | 544 | 175 |
| Ranolazinebrand: Ranolazine Er | 530 | 132 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,261 across 85 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-05
- Last updated
- 2019-03-04
Frequently asked questions
- What is Thein Htay's NPI number?
- Thein Htay's National Provider Identifier (NPI) is 1861594228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thein Htay's specialty?
- Thein Htay is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thein Htay located?
- Thein Htay's practice location on file with NPPES is 35 Garfield Ave., Alhambra, CA 91801.
- What is Thein Htay's phone number?
- The practice phone number listed in the NPPES registry for Thein Htay is (626) 458-8818.
- Does Thein Htay accept Medicare?
- Thein Htay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thein Htay's NPI active?
- Yes — Thein Htay's NPI (1861594228) is active in the NPPES registry as of the last update on 2019-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.