Mary Ann Tran, M.D.
NPI 1770609620 · Infectious Disease Physician · Round Rock, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ann Tran, M.D. is a Infectious Disease Physician provider in Round Rock, TX (NPI 1770609620).
Provider details
- NPI number
- 1770609620
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 4301082179 (MI)
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
429 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 121 | $163 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 89 | $75 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 67 | $113 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 58 | $91 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 30 | $137 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 48 |
| Cabotegravir/Rilpivirinebrand: Cabenuva | 39 |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 35 |
| Rifampin | 33 |
| Ethambutol Hcl | 30 |
| Azithromycin | 29 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 28 |
| Dolutegravir Sodiumbrand: Tivicay | 24 |
| Voriconazole | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$888 across 40 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
- 2007-03-22
- Last updated
- 2018-08-16
Frequently asked questions
- What is Mary Ann Tran's NPI number?
- Mary Ann Tran's National Provider Identifier (NPI) is 1770609620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ann Tran's specialty?
- Mary Ann Tran is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Ann Tran located?
- Mary Ann Tran's practice location on file with NPPES is 302 University Blvd, Round Rock, TX 78665.
- What is Mary Ann Tran's phone number?
- The practice phone number listed in the NPPES registry for Mary Ann Tran is (512) 509-0200.
- Does Mary Ann Tran accept Medicare?
- Mary Ann Tran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ann Tran's NPI active?
- Yes — Mary Ann Tran's NPI (1770609620) is active in the NPPES registry as of the last update on 2018-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.