NPPES file of Aug 9, 2026

Thelma D'Mark, NP, RN

Women's Health Nurse Practitioner · Los Angeles, CA

Thelma D'Mark, NP, RN is a women's health nurse practitioner with a practice address in Los Angeles, California, and NPI 1891121646, issued on Sep 24, 2013. Check the license (California 23787, 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
1891121646
Name
Thelma D'Mark
Credential
NP, RN
Primary taxonomy
Women's Health Nurse Practitioner 363LW0102X
License numbers
23787 CA
753693 CA
Self-reported in NPPES; status is on the state search
Practice location
400 W 30TH St, Los Angeles, CA 90007
Phone
(213) 284-3200
Enumerated
Sep 24, 2013
Record last updated
Sep 30, 2013 (not updated in 13 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.
Download card Updates feed

8 nearest women's health nurse practitioner records → All 912 in California → Look up another NPI →

Also registered at 400 W 30TH St

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

  1. Bridget Abajian, PA-CMedical Physician Assistant1518677061
  2. Wendi Aboagye, PA-CPhysician Assistant1376134585
  3. Kathryn Adler, FNP-BCFamily Nurse Practitioner1891453304
  4. Letty Ajiz, WHNPWomen's Health Nurse Practitioner1396492641
  5. Anissa Alfaro, MSN FNP-CPrimary Care Nurse Practitioner1497151575
  6. Claire AndresenRegistered Nurse1629449038

Verify Thelma D'Mark 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 23787    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Thelma D'Mark among 912 women's health nurse practitioner records in California

Thelma D'Mark, NP, RN is one of 912 women's health nurse practitioner records with a practice address in California. 46% 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 2013, is newer than 57% of them.

  • NPI issued2013 · 57% of these records are older, 39% newer
  • In a Medicare fileNo · 46% of these records are
  • In the CMS Doctors and Clinicians fileNo · 18% of these records are
  • Record last updated2013 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LW0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Women's Health Nurse Practitioner providers in California

There are 912 women's health nurse practitioner records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 912 in California → Every provider in Los Angeles → Women's Health Nurse Practitioner nationwide →

The 8 women's health nurse practitioner records with the nearest ZIP codes

  1. Shirley Badon, NPLos Angeles, CA 900071205149887
  2. Ann Brooks, NPLos Angeles, CA 900071821209560
  3. Socorro Chisholm, N.P.Los Angeles, CA 900071013051796
  4. Simone Cox, RNNPLos Angeles, CA 900071427030386
  5. Miika Fukuwa, APRNLos Angeles, CA 900071407253263
  6. Julie Jantz, NPLos Angeles, CA 900071902995277
  7. Becky Lee, NPLos Angeles, CA 900071932234382
  8. Lizbeth Tracy Lim, NPLos Angeles, CA 900071750706925

Common questions

What is Thelma D'Mark, NP, RN's NPI number?

Thelma D'Mark, NP, RN's National Provider Identifier (NPI) is 1891121646, issued on Sep 24, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Thelma D'Mark, NP, RN located?

The NPPES record lists a practice address at 400 W 30TH St, Los Angeles, CA, 90007. Phone: (213) 284-3200. Providers update this record themselves, so call before visiting.

How can I verify Thelma D'Mark, NP, RN's license?

NPPES lists California license number 23787, 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.