Steven St Ma, MD
Specialist · Rosemead, CA
Steven St Ma, MD is a specialist with a practice address in Rosemead, California, and NPI 1104964303, issued on Feb 1, 2007. Check the license (California A62421, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Steven St Ma
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- A62421 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9428 Valley Blvd Ste 201, Rosemead, CA 91770
- Phone
- (626) 350-6776
- Enumerated
- Feb 1, 2007
- Record last updated
- Dec 31, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (626) 350-3353
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 9428 Valley Blvd Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elson Lai, MDOphthalmology Physician1750549192
Verify Steven St Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A62421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Steven St Ma among 5,749 specialist records in California
Steven St Ma, MD is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 44% newer
- In a Medicare fileNo · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2008 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,749 in California → Every provider in Rosemead → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Jennifer Banh, B.A.Rosemead, CA 917701962674242
- Damiano CentolaRosemead, CA 917701477941169
- Bunchen Fan, M.D.Rosemead, CA 917701588665657
- Kevin KwokRosemead, CA 917701477802130
- Shashank Arya, MDPomona, CA 917671992782726
- G. Hossein Bahadoor, R.P.T.Pomona, CA 917671124237797
- Cindy BaldelomarSan Dimas, CA 917731629936034
- Alaa Latif, MDPomona, CA 917671619965506
Common questions
What is Steven St Ma, MD's NPI number?
Steven St Ma, MD's National Provider Identifier (NPI) is 1104964303, issued on Feb 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Steven St Ma, MD located?
The NPPES record lists a practice address at 9428 Valley Blvd Ste 201, Rosemead, CA, 91770. Phone: (626) 350-6776. Providers update this record themselves, so call before visiting.
How can I verify Steven St Ma, MD's license?
NPPES lists California license number A62421, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.