Tammy Tran-Yang, D.O.
NPI 1578856530 · Gastroenterology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Tran-Yang, D.O. is a Gastroenterology Physician provider in Grand Rapids, MI (NPI 1578856530).
Provider details
- NPI number
- 1578856530
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 5101019188 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
21 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 21 | $241 |
Typical Medicare-allowed amounts for these services range $241–$241 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 46 | 45 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 43 | 43 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 11885 E 12 Mile RdSte. 300aWarren, MI 48093-3474Phone: (586) 582-6630Fax: (586) 582-6631
- 2093 Health Dr Sw Ste 302Wyoming, MI 49519-9691Phone: (616) 252-5775Fax: (616) 252-5785
Registry dates
- Enumerated
- 2011-05-25
- Last updated
- 2024-03-12
- Certified
- 2024-03-12
Frequently asked questions
- What is Tammy Tran-Yang's NPI number?
- Tammy Tran-Yang's National Provider Identifier (NPI) is 1578856530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Tran-Yang's specialty?
- Tammy Tran-Yang is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Tammy Tran-Yang located?
- Tammy Tran-Yang's practice location on file with NPPES is 310 Lafayette Ave Se Ste 200, Grand Rapids, MI 49503-4693.
- What is Tammy Tran-Yang's phone number?
- The practice phone number listed in the NPPES registry for Tammy Tran-Yang is (616) 752-6525.
- Does Tammy Tran-Yang accept Medicare?
- Tammy Tran-Yang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Tran-Yang's NPI active?
- Yes — Tammy Tran-Yang's NPI (1578856530) is active in the NPPES registry as of the last update on 2024-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.