NPPES file of Aug 9, 2026

Andrew W. Bollen, MD

Neuropathology Physician · San Francisco, CA

Andrew W. Bollen, MD is a neuropathology physician with a practice address in San Francisco, California, and NPI 1629036470, issued on May 2, 2006. Check the license (California G59408, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629036470
Name
Andrew W. Bollen
Credential
MD
Primary taxonomy
Neuropathology Physician 207ZN0500X
License number
G59408 CA
Self-reported in NPPES; status is on the state search
Practice location
513 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 476-5236
Enumerated
May 2, 2006
Record last updated
Jul 13, 2026
Fax
(415) 476-7963
Medicaid ID
0G5940800 CA
Medicare enrollment
Enrolled (PECOS I20080313000384); accepts Medicare assignment
Medical or professional school
University Of California, Davis School Of Medicine, 1985
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 513 Parnassus Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kimiya Abtahi, DMDStudent in an Organized Health Care Education/Training Program1295397719
  2. Kemi Alabi, MDStudent in an Organized Health Care Education/Training Program1821857004
  3. Ivy Aslan, M.D.Specialist1346571833
  4. Su Aung, M.D.Infectious Disease Physician1649513805
  5. Jeanie Bhuller, D.O.Anesthesiology Physician1801020391
  6. Catherine Blebea, MDInternal Medicine Physician1134680531

Verify Andrew W. Bollen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G59408
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 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.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $68.40

1 payment: food and beverage; the largest payer was Carl Zeiss Meditec USA, Inc. The 30 providers of this specialty with any payment received $13,616.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Andrew Bollen$68
  2. Specialty average$13,617

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. University OF California San FranciscoSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Andrew W. Bollen among 23 neuropathology physician records in California

Andrew W. Bollen, MD is one of 23 neuropathology physician records with a practice address in California. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.

  • NPI issued2006 · 0% of these records are older, 57% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1985 · median 2005 among the 13 with a school on file
  • Record last updated2026 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZN0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neuropathology Physician providers in California

There are 23 neuropathology physician records in California.

The 8 neuropathology physician records with the nearest ZIP codes

  1. Stephen Dearmond, MDSan Francisco, CA 941431619923778
  2. Arie Perry, MDSan Francisco, CA 941431952327181
  3. Joanna Phillips, MD/PHDSan Francisco, CA 941431205002235
  4. Merryl Terry, MDSan Francisco, CA 941431154701951
  5. Scott Vandenberg, MDSan Francisco, CA 941431043268055
  6. Raymond Sobel, M.D.Palo Alto, CA 943041558463638
  7. Romain Cayrol, MDStanford, CA 943051659857753
  8. Edward Plowey, M.D., PH.D.Stanford, CA 943051033498761

Common questions

What is Andrew W. Bollen, MD's NPI number?

Andrew W. Bollen, MD's National Provider Identifier (NPI) is 1629036470, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Andrew W. Bollen, MD located?

The NPPES record lists a practice address at 513 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-5236. Providers update this record themselves, so call before visiting.

How can I verify Andrew W. Bollen, MD's license?

NPPES lists California license number G59408, 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 Andrew W. Bollen, MD's MIPS final score?

The 2023 MIPS final score is 74.5 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.