Olga Garshyna, MD
NPI 1508040585 · Hospitalist Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Olga Garshyna, MD is a Hospitalist Physician provider in Pasadena, CA (NPI 1508040585).
Provider details
- NPI number
- 1508040585
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A107841 (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 tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,355 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 1,017 | $82 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 254 | $120 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 39 | $135 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 31 | $85 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 14 | $51 |
Typical Medicare-allowed amounts for these services range $51–$135 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 28 | 16 |
| Ondansetronbrand: Ondansetron Odt | 26 | 26 |
| Ciprofloxacin Hcl | 23 | 23 |
| Prednisone | 21 | 21 |
| Carvedilol | 18 | 16 |
| Furosemide | 18 | 18 |
| Metoprolol Succinate | 15 | 11 |
Practice location
Mailing address
Additional practice locations (1)
- 50 Bellefontaine St Ste 307Pasadena, CA 91105-3132Phone: (626) 397-3030
Registry dates
- Enumerated
- 2007-12-26
- Last updated
- 2025-07-08
- Certified
- 2025-07-08
Frequently asked questions
- What is Olga Garshyna's NPI number?
- Olga Garshyna's National Provider Identifier (NPI) is 1508040585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olga Garshyna's specialty?
- Olga Garshyna is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Olga Garshyna located?
- Olga Garshyna's practice location on file with NPPES is 100 W California Blvd, Pasadena, CA 91105-3010.
- What is Olga Garshyna's phone number?
- The practice phone number listed in the NPPES registry for Olga Garshyna is (626) 352-1444.
- Does Olga Garshyna accept Medicare?
- Olga Garshyna is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Olga Garshyna's NPI active?
- Yes — Olga Garshyna's NPI (1508040585) is active in the NPPES registry as of the last update on 2025-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.