NPPES file of Aug 9, 2026

Nathan Sleeth Samras, M.D.

Internal Medicine Physician · Los Angeles, CA

Nathan Sleeth Samras, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1942527692, issued on Apr 20, 2010. Check the license (California A146081, as entered in NPPES) on the Medical Board of California; 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
1942527692
Name
Nathan Sleeth Samras
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A146081 CA
Self-reported in NPPES; status is on the state search
Practice location
100 Ucla Medical Plz Ste 490, Los Angeles, CA 90024
Phone
(310) 206-8000
Enumerated
Apr 20, 2010
Record last updated
Sep 5, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(310) 206-8005
Medicaid IDs
003147649C GA
003147649B GA
003147649A GA
GA1653 SC
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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Also registered at 100 Ucla Medical Plz Ste 490

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

  1. Susan Duan, M.D,Internal Medicine Physician1275951261
  2. S. Anjani Mattai, MDInternal Medicine Physician1528030996
  3. Douglas MuradInternal Medicine Physician1649628900
  4. Yatindra PatelInternal Medicine Physician1407485972
  5. Kamalpreet Saini, NPPrimary Care Nurse Practitioner1891416582

Verify Nathan Sleeth Samras in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A146081
    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
Open 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.

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77% fewer Medicare Part D claims than the average internal medicine physician in 2024

732 Medicare Part D claims for 114 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 25 claims were for opioids.

  1. Nathan Samras732
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium79 claims
  2. Amlodipine Besylate36 claims
  3. Rosuvastatin Calcium28 claims
  4. Tamsulosin Hcl24 claims
  5. Losartan Potassium23 claims
  6. Gabapentin18 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.

Nathan Sleeth Samras among 17,696 internal medicine physician records in California

Nathan Sleeth Samras, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 63% of them.

  • NPI issued2010 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2019 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,423 internal medicine physician records list a practice address in Los Angeles

They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Alejandra Casillas, M.D.Los Angeles, CA 900241205026721
  2. Kristina Cordasco, M.D., M.P.H.Los Angeles, CA 900241790700854
  3. Celeste Emont, M.DLos Angeles, CA 900241043414477
  4. Harry Green, MDLos Angeles, CA 900241932127560
  5. Nancy Greengold, MDLos Angeles, CA 900241033328208
  6. Sarah Kim, M.D.Los Angeles, CA 900241205028651
  7. Lisa Kransdorf, MDLos Angeles, CA 900241962675223
  8. S. Anjani Mattai, MDLos Angeles, CA 900241528030996

Common questions

What is Nathan Sleeth Samras, M.D.'s NPI number?

Nathan Sleeth Samras, M.D.'s National Provider Identifier (NPI) is 1942527692, issued on Apr 20, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Sleeth Samras, M.D. located?

The NPPES record lists a practice address at 100 Ucla Medical Plz Ste 490, Los Angeles, CA, 90024. Phone: (310) 206-8000. Providers update this record themselves, so call before visiting.

How can I verify Nathan Sleeth Samras, M.D.'s license?

NPPES lists California license number A146081, 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 Nathan Sleeth Samras, M.D. prescribe under Medicare Part D?

In 2024, Nathan Sleeth Samras, M.D. had 732 Medicare Part D claims for 114 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.