NPPES file of Aug 9, 2026

Natalya V. Sumina, M.D.

Internal Medicine Physician · Los Angeles, CA

Natalya V. Sumina, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1437288123, issued on Mar 5, 2007. Check the license (California A88502, 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
1437288123
Name
Natalya V. Sumina
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A88502 CA
Self-reported in NPPES; status is on the state search
Practice location
11303 W Washington Blvd, Los Angeles, CA 90066
Phone
(310) 391-7281
Enumerated
Mar 5, 2007
Record last updated
Apr 29, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(310) 390-9851
Medicare enrollment
Enrolled (PECOS I20070519000113); 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 11303 W Washington Blvd

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

  1. Lizbeth Antonio Hernandez, LCSWClinical Social Worker1326372012
  2. Jason AsabereMarriage & Family Therapist1558125682
  3. Tammy Bersing-SteinerClinical Social Worker1811312671
  4. Natasha Billups, LMFTMarriage & Family Therapist1528120623
  5. Ian Bohannon, LCSWSocial Worker1992084503
  6. Ashley BookmanRehabilitation Practitioner1194506428

Verify Natalya V. Sumina in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A88502
    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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55% more Medicare Part D claims than the average internal medicine physician in 2024

4,922 Medicare Part D claims for 448 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 35 claims were for opioids.

  1. Natalya Sumina4,922
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium452 claims
  2. Metformin Hcl280 claims
  3. Losartan Potassium204 claims
  4. Levothyroxine Sodium190 claims
  5. Amlodipine Besylate183 claims
  6. Montelukast Sodium178 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.

Bills Medicare through one group practice

  1. The Regents OF The University OF CaliforniaLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Natalya V. Sumina among 17,696 internal medicine physician records in California

Natalya V. Sumina, 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 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 44% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1991 · median 2004 among the 11,065 with a school on file
  • Record last updated2009 · 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. Soheil Azimi, MDLos Angeles, CA 900661841203163
  2. Anita Batra, M.D.Los Angeles, CA 900661477878031
  3. Michael BierLos Angeles, CA 900661104323757
  4. Amanda Grantham, M.D.Los Angeles, CA 900661962532721
  5. Matthew Herrmann, MDLos Angeles, CA 900661760918551
  6. Elizabeth Ko, M.D.Los Angeles, CA 900661801189048
  7. Justine Korolyov, M.D.Los Angeles, CA 900661124461736
  8. Ricky Onofre-Vasquez, M.D.Los Angeles, CA 900661750353892

Common questions

What is Natalya V. Sumina, M.D.'s NPI number?

Natalya V. Sumina, M.D.'s National Provider Identifier (NPI) is 1437288123, issued on Mar 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Natalya V. Sumina, M.D. located?

The NPPES record lists a practice address at 11303 W Washington Blvd, Los Angeles, CA, 90066. Phone: (310) 391-7281. Providers update this record themselves, so call before visiting.

How can I verify Natalya V. Sumina, M.D.'s license?

NPPES lists California license number A88502, 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 Natalya V. Sumina, M.D. prescribe under Medicare Part D?

In 2024, Natalya V. Sumina, M.D. had 4,922 Medicare Part D claims for 448 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.