NPPES file of Aug 9, 2026

Theresa C. Henderson, MD

Specialist · Los Angeles, CA

Theresa C. Henderson, MD is a specialist with a practice address in Los Angeles, California, and NPI 1497878177, issued on Apr 9, 2007. Check the license (California A40129, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497878177
Name
Theresa C. Henderson
Credential
MD
Primary taxonomy
Specialist 174400000X
License number
A40129 CA
Self-reported in NPPES; status is on the state search
Practice location
8631 W 3RD St, Los Angeles, CA 90048
Phone
(310) 652-3055
Enumerated
Apr 9, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(310) 652-0738
Medicare enrollment
Enrolled (PECOS I20120430000131); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 8631 W 3RD St

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

  1. Kenneth Adashek, M.D.Surgery Physician1821008798
  2. David Anderson, M.D.Family Medicine Physician1134154412
  3. Parvaneh Bahmani, M.D.Nephrology Physician1609887678
  4. Paula Bailey-Walton, M.D.Internal Medicine Physician1174646590
  5. Maxine Baum, M.D.Allergy Physician1568689594
  6. Mavis Billips, M.D.Specialist1902905664

Verify Theresa C. Henderson 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 A40129
    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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28% fewer Medicare Part D claims than the average specialist in 2024

990 Medicare Part D claims for 55 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Theresa Henderson990
  2. Specialty average1,380

Most prescribed

  1. Eliquis65 claims
  2. Warfarin Sodium56 claims
  3. Amlodipine Besylate54 claims
  4. Losartan Potassium28 claims
  5. Epogen27 claims
  6. Rosuvastatin Calcium27 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: $136.74

1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Theresa Henderson$136.74
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Theresa C. Henderson among 5,749 specialist records in California

Theresa C. Henderson, 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. Its NPI, issued in 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 44% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated1980 · median 1989 among the 1,075 with a school on file
  • Record last updated2007 · 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.

The 8 specialist records with the nearest ZIP codes

  1. Alexander Allins, M.D.Los Angeles, CA 900481033193016
  2. Denise Barbuto, M.D.West Hollywood, CA 900481013910983
  3. Jane Davis, M.D.Los Angeles, CA 900481659354504
  4. Stephen Geller, M.D.West Hollywood, CA 900481619979762
  5. Carla Herriford, M.D.Los Angeles, CA 900481114910163
  6. Lee-Chaun Kao, M.D.Los Angeles, CA 900481588647036
  7. Theodore Khalili, M.D.Los Angeles, CA 900481023092103
  8. Renu Khurana, MDWest Hollywood, CA 900481902802358

Common questions

What is Theresa C. Henderson, MD's NPI number?

Theresa C. Henderson, MD's National Provider Identifier (NPI) is 1497878177, issued on Apr 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Theresa C. Henderson, MD located?

The NPPES record lists a practice address at 8631 W 3RD St, Los Angeles, CA, 90048. Phone: (310) 652-3055. Providers update this record themselves, so call before visiting.

How can I verify Theresa C. Henderson, MD's license?

NPPES lists California license number A40129, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Theresa C. Henderson, MD prescribe under Medicare Part D?

In 2024, Theresa C. Henderson, MD had 990 Medicare Part D claims for 55 beneficiaries; the average among specialist prescribers was 1,380. 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.