NPPES file of Aug 9, 2026

Carlin Li-An Chi, M.D.

Family Medicine Physician · Petaluma, CA

Carlin Li-An Chi, M.D. is a family medicine physician with a practice address in Petaluma, California, and NPI 1497843122, issued on Oct 10, 2006. Check the license (California A71794, 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
1497843122
Name
Carlin Li-An Chi
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A71794 CA
Self-reported in NPPES; status is on the state search
Practice location
1179 N Mcdowell Blvd, Petaluma, CA 94954
Phone
(707) 559-7500
Enumerated
Oct 10, 2006
Record last updated
Mar 1, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(707) 559-7570
Medicare enrollment
Enrolled (PECOS I20100826000523); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 1998
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 1179 N Mcdowell Blvd

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

  1. Amy Adams, M.D.Emergency Medicine Physician1700976610
  2. Theresa Aguilar, MD, MPHFamily Medicine Physician1205343944
  3. Andrea Akabike, DDSPediatric Dentistry1912512492
  4. Andrew Ashcroft, M.D.Family Medicine Physician1053306795
  5. Miriam Avena-Mascareno, FNP-CFamily Nurse Practitioner1629797246
  6. Yasaman AyatAcupuncturist1174239032

Verify Carlin Li-An Chi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A71794
    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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26% fewer Medicare Part D claims than the average family medicine physician in 2024

2,625 Medicare Part D claims for 366 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 188 claims were for opioids.

  1. Carlin Chi2,625
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium157 claims
  2. Amlodipine Besylate97 claims
  3. Levothyroxine Sodium89 claims
  4. Lisinopril77 claims
  5. Hydrocodone-Acetaminophen76 claims
  6. Gabapentin71 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.

Industry payments in 2024: $26.99

1 payment: food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carlin Chi$26.99
  2. Specialty average$902.55

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

Bills Medicare through 2 group practices

  1. Coastal Health AlliancePoint Reyes Station, CA
  2. Petaluma Health Center IncPetaluma, CA

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

Carlin Li-An Chi among 17,133 family medicine physician records in California

Carlin Li-An Chi, M.D. 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1998 · median 2005 among the 10,652 with a school on file
  • Record last updated2014 · 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).

46 family medicine physician records list a practice address in Petaluma

They are 46 of the 1,856 NPPES records with a practice address in Petaluma, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Andrew Ashcroft, M.D.Petaluma, CA 949541053306795
  2. Richard Chen, MDPetaluma, CA 949541285602573
  3. Jonathan Choe, M.D.Petaluma, CA 949541518959170
  4. Michelle Davey, DOPetaluma, CA 949541366445785
  5. Patrick Flynn, M.D.Petaluma, CA 949541770567745
  6. Colleen Foy Sterling, M.D.Petaluma, CA 949541619969326
  7. Robert Hentz, MDPetaluma, CA 949541720012107
  8. Audra Lehman, M.D.Petaluma, CA 949541063404762

Common questions

What is Carlin Li-An Chi, M.D.'s NPI number?

Carlin Li-An Chi, M.D.'s National Provider Identifier (NPI) is 1497843122, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carlin Li-An Chi, M.D. located?

The NPPES record lists a practice address at 1179 N Mcdowell Blvd, Petaluma, CA, 94954. Phone: (707) 559-7500. Providers update this record themselves, so call before visiting.

How can I verify Carlin Li-An Chi, M.D.'s license?

NPPES lists California license number A71794, 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 Carlin Li-An Chi, M.D. prescribe under Medicare Part D?

In 2024, Carlin Li-An Chi, M.D. had 2,625 Medicare Part D claims for 366 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.