NPPES file of Aug 9, 2026

John V. Crowder, MD

Ophthalmology Physician · Freedom, CA

John V. Crowder, MD is an ophthalmology physician with a practice address in Freedom, California, and NPI 1215021480, issued on Oct 3, 2006. Check the license (California 00C336820, 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
1215021480
Name
John V. Crowder
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
00C336820 CA
Self-reported in NPPES; status is on the state search
Practice location
160 Green Valley RD, Freedom, CA 95019
Phone
(831) 728-2020
Enumerated
Oct 3, 2006
Record last updated
Jul 24, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(831) 728-4739
Medicaid ID
GR0074000 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 160 Green Valley RD

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

  1. Lawrence Birndorf, MDOphthalmology Physician1558450932
  2. Lucie Gamboa, M.D.Pediatric Nephrology Physician1487768271
  3. William Kadell, O.D.Vision Therapy Optometrist1013150085
  4. Anne Kato, M.D.Ophthalmology Physician1871849984
  5. Philip Knorr, M.D.Urology Physician1801981485
  6. Helen Truong, ODOptometrist1710663406

Verify John V. Crowder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 00C336820
    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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98% fewer Medicare Part D claims than the average ophthalmology physician in 2024

28 Medicare Part D claims, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.

  1. John Crowder28
  2. Specialty average1,518

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.

John V. Crowder among 2,899 ophthalmology physician records in California

John V. Crowder, 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 fileNo · 66% of these records are
  • Record last updated2012 · 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).

4 ophthalmology physician records list a practice address in Freedom

They are 4 of the 90 NPPES records with a practice address in Freedom, and 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Lawrence Birndorf, MDFreedom, CA 950191558450932
  2. Conrad Hamako, MDFreedom, CA 950191679675029
  3. Anne Kato, M.D.Freedom, CA 950191871849984
  4. Richard Harper, MDGilroy, CA 950201306965835
  5. Nazhat Sharma, M.D.Hollister, CA 950231841269636
  6. Deborah Alcorn, MDCupertino, CA 950141346332780
  7. Tarek El-Sawy, M.D.Cupertino, CA 950141922269083
  8. James Liu, M.D.Cupertino, CA 950141831139997

Common questions

What is John V. Crowder, MD's NPI number?

John V. Crowder, MD's National Provider Identifier (NPI) is 1215021480, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John V. Crowder, MD located?

The NPPES record lists a practice address at 160 Green Valley RD, Freedom, CA, 95019. Phone: (831) 728-2020. Providers update this record themselves, so call before visiting.

How can I verify John V. Crowder, MD's license?

NPPES lists California license number 00C336820, 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 V. Crowder, MD prescribe under Medicare Part D?

In 2024, John V. Crowder, MD had 28 Medicare Part D claims; 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.