NPPES file of Aug 9, 2026

Kam Chan, D.O.

Family Medicine Physician · Vacaville, CA

Kam Chan, D.O. is a family medicine physician with a practice address in Vacaville, California, and NPI 1730304502, issued on Apr 16, 2007. Check the license (California 20A9017, 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
1730304502
Name
Kam Chan
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A9017 CA
Self-reported in NPPES; status is on the state search
Practice location
600 Nut Tree RD Ste 310, Vacaville, CA 95687
Phone
(707) 359-1819
Enumerated
Apr 16, 2007
Record last updated
Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080527000829); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Also registered at 600 Nut Tree RD Ste 310

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

  1. Jienelle Herndon, FNP-CFamily Nurse Practitioner1629443262
  2. Crystal Hsu, D.P.MFoot & Ankle Surgery Podiatrist1790034320
  3. Zelikha IzmaraiMental Health Counselor1760965313
  4. Maria Moreno, CMCase Manager/Care Coordinator1306575766
  5. Cesar Novelo, CMCase Manager/Care Coordinator1750012712
  6. Yesenia OrozcoCase Manager/Care Coordinator1164151924

Verify Kam Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A9017
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.2 times the Medicare Part D claims of the average family medicine physician in 2024

7,640 Medicare Part D claims for 1,464 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 415 claims were for opioids.

  1. Kam Chan7,640
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium537 claims
  2. Prednisone360 claims
  3. Lisinopril249 claims
  4. Amlodipine Besylate222 claims
  5. Losartan Potassium220 claims
  6. Hydrocodone-Acetaminophen209 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. Permanente Medical Group IncStockton, CA

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

Kam Chan among 17,133 family medicine physician records in California

Kam Chan, D.O. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 47% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2003 · median 2005 among the 10,652 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

56 family medicine physician records list a practice address in Vacaville

They are 56 of the 1,903 NPPES records with a practice address in Vacaville, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Marsha Alexander, M.D.Vacaville, CA 956871275692055
  2. Lesley Carmichael, DOVacaville, CA 956871184848863
  3. Ana Cherry, M.D.Vacaville, CA 956871679656573
  4. Joshua Connor, M.D.Vacaville, CA 956871326402736
  5. Nnenna Ikegbu, M.D.Vacaville, CA 956871801077680
  6. Shanaz Khambatta, D.O.Vacaville, CA 956871760587570
  7. Brian Leo, M.D.Vacaville, CA 956871891970745
  8. David Mathis, M.D.Vacaville, CA 956871285666081

Common questions

What is Kam Chan, D.O.'s NPI number?

Kam Chan, D.O.'s National Provider Identifier (NPI) is 1730304502, issued on Apr 16, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kam Chan, D.O. located?

The NPPES record lists a practice address at 600 Nut Tree RD Ste 310, Vacaville, CA, 95687. Phone: (707) 359-1819. Providers update this record themselves, so call before visiting.

How can I verify Kam Chan, D.O.'s license?

NPPES lists California license number 20A9017, 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 Kam Chan, D.O. prescribe under Medicare Part D?

In 2024, Kam Chan, D.O. had 7,640 Medicare Part D claims for 1,464 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.