Joseph Mak, DO
Pulmonary Disease Physician · San Francisco, CA
Joseph Mak, DO is a pulmonary disease physician with a practice address in San Francisco, California, and NPI 1629537774, issued on Mar 18, 2019. Check the license (California 20A23532, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joseph Mak
- Credential
- DO
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 20A23532 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Parnassus Ave FL 6, San Francisco, CA 94143
- Phone
- (415) 353-2961
- Enumerated
- Mar 18, 2019
- Record last updated
- Jun 14, 2025
- Medicare enrollment
- Enrolled (PECOS I20250630002974); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Also registered at 400 Parnassus Ave FL 6
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Chou, NURSE PRACTITIONERNurse Practitioner1619434628
- David Dungca, RN, NP-CFamily Nurse Practitioner1194356592
- Andrew Lechner, M.D., PH.D.Pulmonary Disease Physician1770045023
- Soumya MuragPulmonary Disease Physician1740786334
- Nicole Narain, DNP, ARNPNurse Practitioner1831843846
- Marian Poley, MDPulmonary Disease Physician1396206694
Verify Joseph Mak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A23532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
94 Medicare Part D claims for 32 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Albuterol Sulfate Hfa17 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 2 group practices
- Regents OF The University OF CaliforniaSan Francisco, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Mak among 1,443 pulmonary disease physician records in California
Joseph Mak, DO is one of 1,443 pulmonary disease physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 95% of them.
- NPI issued2019 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2019 · median 2002 among the 1,061 with a school on file
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in California
There are 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in San Francisco → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Harold Chapman, MDSan Francisco, CA 941431831153741
- Hubert Chen, M.D.San Francisco, CA 941431215042957
- Jeffrey Golden, MDSan Francisco, CA 941431043267446
- Antonio Gomez, MDSan Francisco, CA 941431104833888
- Anh Innes, M.D.San Francisco, CA 941431982803573
- Talmadge King, MDSan Francisco, CA 941431659388338
- Laura Koth, MDSan Francisco, CA 941431952367815
- Lorriana Leard, MDSan Francisco, CA 941431366459422
Common questions
What is Joseph Mak, DO's NPI number?
Joseph Mak, DO's National Provider Identifier (NPI) is 1629537774, issued on Mar 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Mak, DO located?
The NPPES record lists a practice address at 400 Parnassus Ave FL 6, San Francisco, CA, 94143. Phone: (415) 353-2961. Providers update this record themselves, so call before visiting.
How can I verify Joseph Mak, DO's license?
NPPES lists California license number 20A23532, 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 Joseph Mak, DO prescribe under Medicare Part D?
In 2024, Joseph Mak, DO had 94 Medicare Part D claims for 32 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.