NPPES file of Aug 9, 2026

Joellyn Ma, NP

Obstetrics & Gynecology Nurse Practitioner · Bakersfield, CA

Joellyn Ma, NP is an obstetrics & gynecology nurse practitioner with a practice address in Bakersfield, California, and NPI 1629049911, issued on Jan 27, 2006. Check the license (California 431524, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629049911
Name
Joellyn Ma
Credential
NP
Primary taxonomy
Obstetrics & Gynecology Nurse Practitioner 363LX0001X
License numbers
431524 CA
16033 CA
Self-reported in NPPES; status is on the state search
Practice location
2535 16TH St, Bakersfield, CA 93301
Phone
(661) 634-1000
Enumerated
Jan 27, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology nurse practitioner records → All 394 in California → Look up another NPI →

Also registered at 2535 16TH St

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

  1. Abegail AgcalaoPhysical Therapist1841952595
  2. Merrilyn Brady, RNRegistered Nurse1730318411
  3. Estrelita Bumacod, R.P.T.Physical Therapist1538104971
  4. Wilmer CamposBehavior Technician1679409908
  5. Natalie GonzalezBehavior Technician1366318347
  6. Lizzie Holliwell, RNRegistered Nurse1427120534

Verify Joellyn Ma in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 431524    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
Find the California license search

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Joellyn Ma among 394 obstetrics & gynecology nurse practitioner records in California

Joellyn Ma, NP is one of 394 obstetrics & gynecology nurse practitioner records with a practice address in California. 38% 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 62% newer
  • In a Medicare fileNo · 38% of these records are
  • In the CMS Doctors and Clinicians fileNo · 14% of these records are
  • Record last updated2007 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LX0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Nurse Practitioner providers in California

There are 394 obstetrics & gynecology nurse practitioner records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 394 in California → Every provider in Bakersfield → Obstetrics & Gynecology Nurse Practitioner nationwide →

The 8 obstetrics & gynecology nurse practitioner records with the nearest ZIP codes

  1. Maria Rubolino-Gallego, FNPBakersfield, CA 933011649517590
  2. Nancy Bailey, NPVisalia, CA 932911306061288
  3. Laura Sanford, CNPBakersfield, CA 933111750353231
  4. Mary Prickett, N.P.Tulare, CA 932741437205457
  5. Margene Robinson, N.P.Tulare, CA 932741154414845
  6. Cheryl Thomas, OB GYN, CNP, CNMLemoore, CA 932451528146198
  7. Loren Sampietro, ARNPHanford, CA 932301326609363
  8. Christine Clickard, FNPSan Luis Obispo, CA 934051659594182

Common questions

What is Joellyn Ma, NP's NPI number?

Joellyn Ma, NP's National Provider Identifier (NPI) is 1629049911, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joellyn Ma, NP located?

The NPPES record lists a practice address at 2535 16TH St, Bakersfield, CA, 93301. Phone: (661) 634-1000. Providers update this record themselves, so call before visiting.

How can I verify Joellyn Ma, NP's license?

NPPES lists California license number 431524, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.