NPPES file of Aug 9, 2026

John A. Latham, MD

Ophthalmology Physician · Modesto, CA

John A. Latham, MD is an ophthalmology physician with a practice address in Modesto, California, and NPI 1952359259, issued on May 5, 2006. Check the license (California A69309, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952359259
Name
John A. Latham
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A69309 CA
Self-reported in NPPES; status is on the state search
Practice location
1011 Sylvan Ave, Modesto, CA 95350
Phone
(209) 550-4780
Enumerated
May 5, 2006
Record last updated
Sep 29, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicaid ID
00A693090 CA
Medicare enrollment
Enrolled (PECOS I20081215000284); accepts Medicare assignment
Medical or professional school
Brody School Of Medicine At East Carolina University, 1995
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 1011 Sylvan Ave

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

  1. Omar Al AzzawiInternal Medicine Physician1407581085
  2. Kevin Craig, MDOphthalmology Physician1912089061
  3. Brian Fechter, MDOphthalmology Physician1225181399
  4. Maria Garnica Albor, MDInternal Medicine Physician1922661024
  5. Anthony Guida, MDOphthalmology Physician1346239803
  6. Kerry Horner, O.D.Optometrist1467441931

Verify John A. Latham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A69309
    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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39% more Medicare Part D claims than the average ophthalmology physician in 2024

2,104 Medicare Part D claims for 481 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. John Latham2,104
  2. Specialty average1,518

Most prescribed

  1. Latanoprost868 claims
  2. Timolol Maleate258 claims
  3. Brimonidine Tartrate183 claims
  4. Doxycycline Hyclate132 claims
  5. Dorzolamide-Timolol101 claims
  6. Prednisolone Acetate81 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 one group practice

  1. Sutter Valley Medical FoundationModesto, CA

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

John A. Latham among 2,899 ophthalmology physician records in California

John A. Latham, MD 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
  • Graduated1995 · median 2001 among the 1,907 with a school on file
  • Record last updated2010 · 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. Kevin Craig, MDModesto, CA 953501912089061
  2. Keith Davis, MDModesto, CA 953501639268089
  3. Brian Fechter, MDModesto, CA 953501225181399
  4. Anthony Guida, MDModesto, CA 953501346239803
  5. Doowon Huh, MDModesto, CA 953501992382022
  6. Sharon Lutosky, MDModesto, CA 953501972592434
  7. Gregory Tesluk, MDModesto, CA 953501255351755
  8. Kenneth Grossman, M.D.Merced, CA 953481184684672

Common questions

What is John A. Latham, MD's NPI number?

John A. Latham, MD's National Provider Identifier (NPI) is 1952359259, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John A. Latham, MD located?

The NPPES record lists a practice address at 1011 Sylvan Ave, Modesto, CA, 95350. Phone: (209) 550-4780. Providers update this record themselves, so call before visiting.

How can I verify John A. Latham, MD's license?

NPPES lists California license number A69309, 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 John A. Latham, MD prescribe under Medicare Part D?

In 2024, John A. Latham, MD had 2,104 Medicare Part D claims for 481 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.