Olga Grigorieva Olson, M.D. PH.D.
Hospitalist Physician · San Luis Obispo, CA
Olga Grigorieva Olson, M.D. PH.D. is a hospitalist physician with a practice address in San Luis Obispo, California, and NPI 1780046243, issued on Mar 24, 2016. Check the license (California A162175, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Olga Grigorieva Olson
- Credential
- M.D. PH.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A162175 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1010 Murray Ave, San Luis Obispo, CA 93405
- Phone
- (214) 712-2616
- Enumerated
- Mar 24, 2016
- Record last updated
- Jul 30, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200817001302); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 1010 Murray Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Glen Aquino, MDAnesthesiology Physician1396985842
- Matthew Barry, DOAnesthesiology Physician1134268881
- John Bass, NP, CNS, PHDCritical Care Medicine Nurse Practitioner1801235320
- Hayley BinghamOccupational Therapist1609543263
- Joshua Bridge, DOEmergency Medicine Physician1932849569
Verify Olga Grigorieva Olson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A162175Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average hospitalist physician in 2024
227 Medicare Part D claims for 99 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Eliquis15 claims
- Furosemide14 claims
- Levofloxacin14 claims
- Pantoprazole Sodium11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Galen Inpatient Physicians PCSan Luis Obispo, CA
- Vituity Hospitalists PCSan Luis Obispo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olga Grigorieva Olson among 3,099 hospitalist physician records in California
Olga Grigorieva Olson, M.D. PH.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.
- NPI issued2016 · 70% of these records are older, 26% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1999 · median 2010 among the 2,505 with a school on file
- Record last updated2020 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Luis Obispo → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Ann Bollay, MDSan Luis Obispo, CA 934051487610333
- Ashlynn Gordon, D.O.San Luis Obispo, CA 934051255779641
- Sarfaraz Mansuri, MDSan Luis Obispo, CA 934051508178088
- Gordon Ryan, MDSan Luis Obispo, CA 934051396824546
- Cindy Su, M.D.San Luis Obispo, CA 934051285088211
- Christopher Walheim, MDSan Luis Obispo, CA 934051326572116
- Julie Gelman, MDSan Luis Obispo, CA 934011962461046
- Justin Grammy, DOSan Luis Obispo, CA 934011003254483
Common questions
What is Olga Grigorieva Olson, M.D. PH.D.'s NPI number?
Olga Grigorieva Olson, M.D. PH.D.'s National Provider Identifier (NPI) is 1780046243, issued on Mar 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Olga Grigorieva Olson, M.D. PH.D. located?
The NPPES record lists a practice address at 1010 Murray Ave, San Luis Obispo, CA, 93405. Phone: (214) 712-2616. Providers update this record themselves, so call before visiting.
How can I verify Olga Grigorieva Olson, M.D. PH.D.'s license?
NPPES lists California license number A162175, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Olga Grigorieva Olson, M.D. PH.D. prescribe under Medicare Part D?
In 2024, Olga Grigorieva Olson, M.D. PH.D. had 227 Medicare Part D claims for 99 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.