Anna Michelle Dillier Olsen
Anesthesiology Physician · Palo Alto, CA
Anna Michelle Dillier Olsen is an anesthesiology physician with a practice address in Palo Alto, California, and NPI 1790119626, issued on Aug 27, 2013. Check the license (California A150908, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Anna Michelle Dillier Olsen
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A150908 CA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 497-8000
- Enumerated
- Aug 27, 2013
- Record last updated
- Jul 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200616001966); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 725 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shayda Abadi, NPNurse Practitioner1316745540
- Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
- Alexandra Abbott, MDPediatrics Physician1760018675
- Steven Abboud, MDAnesthesiology Physician1619364908
- Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
- Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235
Verify Anna Michelle Dillier Olsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A150908Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 69.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Tahoe Forest Hospital DistrictTruckee, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna Michelle Dillier Olsen among 7,571 anesthesiology physician records in California
Anna Michelle Dillier Olsen is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 73% of them.
- NPI issued2013 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2016 · median 2006 among the 4,868 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
111 anesthesiology physician records list a practice address in Palo Alto
They are 111 of the 7,617 NPPES records with a practice address in Palo Alto, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Palo Alto → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- David Berger, MDPalo Alto, CA 943041598715922
- Kevin Fish, MDPalo Alto, CA 943041316963960
- Margaret Fish, M.B. CH.B.Palo Alto, CA 943041265452700
- Natasha Funck, M.D.Palo Alto, CA 943041245251123
- David Gaba, M.D.Palo Alto, CA 943041639274798
- Thomas Harrison, MDPalo Alto, CA 943041902994965
- Steven Howard, M.D.Palo Alto, CA 943041518986587
- Komal Kamra, MDPalo Alto, CA 943041124045927
Common questions
What is Anna Michelle Dillier Olsen's NPI number?
Anna Michelle Dillier Olsen's National Provider Identifier (NPI) is 1790119626, issued on Aug 27, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Anna Michelle Dillier Olsen located?
The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.
How can I verify Anna Michelle Dillier Olsen's license?
NPPES lists California license number A150908, 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.
What is Anna Michelle Dillier Olsen's MIPS final score?
The 2023 MIPS final score is 69.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.