Ann K. Kao, M.D.
Cardiovascular Disease Physician · Larkspur, CA
Ann K. Kao, M.D. is a cardiovascular disease physician with a practice address in Larkspur, California, and NPI 1336130145, issued on Nov 1, 2005. Check the license (California G65338, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ann K. Kao
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G65338 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2 Bon Air RD Ste 100, Larkspur, CA 94939
- Phone
- (415) 927-0666
- Enumerated
- Nov 1, 2005
- Record last updated
- Jul 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (415) 927-6168
- Medicare enrollment
- Enrolled (PECOS I20081206000145); may accept Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 2 Bon Air RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Benedict Ancock, M.D.Cardiovascular Disease Physician1578847844
- Mallette Asmuth, MDCardiovascular Disease Physician1023515988
- Anshul BadhwarCardiovascular Disease Physician1710365614
- Amy Gin, M.D.Interventional Cardiology Physician1598080442
- Jennifer Greenway, NPNurse Practitioner1578021960
- Xiaojing HePhysician Assistant1144677956
Verify Ann K. Kao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G65338Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,671 Medicare Part D claims for 228 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Atorvastatin Calcium204 claims
- Metoprolol Succinate184 claims
- Eliquis124 claims
- Amlodipine Besylate121 claims
- Carvedilol89 claims
- Ezetimibe79 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: $188.09
3 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Regents Univ OF California UcsfSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann K. Kao among 2,574 cardiovascular disease physician records in California
Ann K. Kao, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1985 · median 1999 among the 1,742 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 cardiovascular disease physician records list a practice address in Larkspur
They are 21 of the 291 NPPES records with a practice address in Larkspur, and 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Larkspur → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- James Adams, M.D.Larkspur, CA 949391578553277
- Margaret Baer, M.D.Larkspur, CA 949391104816917
- Adam Baumgarten, MDLarkspur, CA 949391366570707
- Kent Gershengorn, M.D.Larkspur, CA 949391811987621
- Brian Keeffe, M.D.Larkspur, CA 949391689664492
- Sahar Naderi, M.D.Larkspur, CA 949391013183334
- Kabir Singh, M.D.Larkspur, CA 949391629233051
- Joel Sklar, M.D.Larkspur, CA 949391215927926
Common questions
What is Ann K. Kao, M.D.'s NPI number?
Ann K. Kao, M.D.'s National Provider Identifier (NPI) is 1336130145, issued on Nov 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ann K. Kao, M.D. located?
The NPPES record lists a practice address at 2 Bon Air RD Ste 100, Larkspur, CA, 94939. Phone: (415) 927-0666. Providers update this record themselves, so call before visiting.
How can I verify Ann K. Kao, M.D.'s license?
NPPES lists California license number G65338, 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 Ann K. Kao, M.D. prescribe under Medicare Part D?
In 2024, Ann K. Kao, M.D. had 1,671 Medicare Part D claims for 228 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.