Shant Tomassian, MD
NPI 1215594692 · Family Medicine Physician · Glendora, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shant Tomassian, MD is a Family Medicine Physician provider in Glendora, CA (NPI 1215594692).
Provider details
- NPI number
- 1215594692
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- PTL1731 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 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
304 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 136 | $122 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 67 | $79 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 34 | $114 |
| Initial Nursing Facility Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99304 | 25 | $83 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 24 | $85 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 419 | 32 |
| Losartan Potassium | 361 | 19 |
| Levothyroxine Sodium | 282 | 22 |
| Gabapentin | 268 | 12 |
| Amlodipine Besylate | 251 | 15 |
| Potassium Chloride | 239 | 13 |
| Furosemide | 236 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$281 across 12 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
- 2019-05-21
- Last updated
- 2022-07-18
- Certified
- 2022-07-18
Frequently asked questions
- What is Shant Tomassian's NPI number?
- Shant Tomassian's National Provider Identifier (NPI) is 1215594692, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shant Tomassian's specialty?
- Shant Tomassian is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Shant Tomassian located?
- Shant Tomassian's practice location on file with NPPES is 415 W Route 66 Ste 201, Glendora, CA 91740-4335.
- What is Shant Tomassian's phone number?
- The practice phone number listed in the NPPES registry for Shant Tomassian is (626) 963-0900.
- Does Shant Tomassian accept Medicare?
- Shant Tomassian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shant Tomassian's NPI active?
- Yes — Shant Tomassian's NPI (1215594692) is active in the NPPES registry as of the last update on 2022-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.