NPPES file of Aug 9, 2026

William Andrew Maxwell, M.D.

Ophthalmology Physician · Fresno, CA

William Andrew Maxwell, M.D. is an ophthalmology physician with a practice address in Fresno, California, and NPI 1205898681, issued on Apr 3, 2006. Check the license (California G35175, 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
1205898681
Name
William Andrew Maxwell
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
G35175 CA
Self-reported in NPPES; status is on the state search
Practice location
1360 E Herndon Ave, Fresno, CA 93720
Phone
(559) 449-5010
Enumerated
Apr 3, 2006
Record last updated
Aug 27, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(559) 449-5014
Medicaid IDs
GR0078920 CA
GR0078924 CA
GR0078921 CA
00G351750 CA
Medicare enrollment
Enrolled (PECOS I20080625000654); accepts Medicare assignment
Medical or professional school
University Of South Carolina School Of Medicine, 1976
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 1360 E Herndon Ave

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

  1. Allyson Chun, O.D.Optometrist1881000404
  2. Steven Fogg, M.D.Ophthalmology Physician1982666871
  3. Jill Habib, O.D.Optometrist1912969742
  4. Clair Hilchie-Schmidt, D.O.Ophthalmology Physician1831387950
  5. Sharon Hiyama, O.D.Optometrist1154388692
  6. Allison Kendall, ODOptometrist1992291975

Verify William Andrew Maxwell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G35175
    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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62% fewer Medicare Part D claims than the average ophthalmology physician in 2024

577 Medicare Part D claims for 177 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.

  1. William Maxwell577
  2. Specialty average1,518

Most prescribed

  1. Latanoprost220 claims
  2. Brimonidine Tartrate57 claims
  3. Tobramycin-Dexamethasone46 claims
  4. Neomycin-Polymyxin-Dexameth44 claims
  5. Timolol Maleate34 claims
  6. Rocklatan31 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 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. Qualityout of 100 · 30% of the final score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $56,923.59

20 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Research LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Maxwell$56,924
  2. Specialty average$4,535

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. Insight Vision Center Medical Group IncFresno, CA

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

William Andrew Maxwell among 2,899 ophthalmology physician records in California

William Andrew Maxwell, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1976 · median 2001 among the 1,907 with a school on file
  • Record last updated2008 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Maziar Bidar, MDFresno, CA 937201689693657
  2. Frank Bishop, M.D.Fresno, CA 937201538134796
  3. Steven Fogg, M.D.Fresno, CA 937201982666871
  4. Andrea Lanier, M.D.Fresno, CA 937201750343158
  5. Christopher Larson, M.D.Fresno, CA 937201588699656
  6. Larry Lawrence, M.D.Fresno, CA 937201164425468
  7. Eric Poulsen, M.D.Fresno, CA 937201003819301
  8. Chad Reder, MDFresno, CA 937201336138924

Common questions

What is William Andrew Maxwell, M.D.'s NPI number?

William Andrew Maxwell, M.D.'s National Provider Identifier (NPI) is 1205898681, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Andrew Maxwell, M.D. located?

The NPPES record lists a practice address at 1360 E Herndon Ave, Fresno, CA, 93720. Phone: (559) 449-5010. Providers update this record themselves, so call before visiting.

How can I verify William Andrew Maxwell, M.D.'s license?

NPPES lists California license number G35175, 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 William Andrew Maxwell, M.D. prescribe under Medicare Part D?

In 2024, William Andrew Maxwell, M.D. had 577 Medicare Part D claims for 177 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is William Andrew Maxwell, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 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.