NPPES file of Aug 9, 2026

Sergei Schegolev, M.D.

Internal Medicine Physician · Walnut Creek, CA

Sergei Schegolev, M.D. is an internal medicine physician with a practice address in Walnut Creek, California, and NPI 1376683805, issued on Feb 7, 2007. Check the license (California A73183, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1376683805
Name
Sergei Schegolev
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A73183 CA
Self-reported in NPPES; status is on the state search
Practice location
1450 Treat Blvd, Walnut Creek, CA 94597
Phone
(925) 296-9000
Enumerated
Feb 7, 2007
Record last updated
Jan 17, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
00A731830 CA
Medicare enrollment
Enrolled (PECOS I20131107001369); accepts Medicare assignment
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 1450 Treat Blvd

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

  1. Lauren Ables, D.O.Family Medicine Physician1710413299
  2. Andrea Agcaoili, D.O.Family Medicine Physician1265775035
  3. Sonal Aggarwal, MDFamily Medicine Physician1336336411
  4. Deborah Arce, M.D.Internal Medicine Physician1841215605
  5. Cynthia AshbrookAllergy & Immunology Physician1386786408
  6. Chanda Banwat, M.D.Internal Medicine Physician1750584389

Verify Sergei Schegolev in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A73183
    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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87% fewer Medicare Part D claims than the average internal medicine physician in 2024

409 Medicare Part D claims for 335 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 20 claims were for opioids.

  1. Sergei Schegolev409
  2. Specialty average3,176

Most prescribed

  1. Paxlovid54 claims
  2. Doxycycline Monohydrate40 claims
  3. Cephalexin39 claims
  4. Nitrofurantoin Mono-Macro38 claims
  5. Azithromycin15 claims
  6. Hydrocodone-Acetaminophen14 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 85.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.7
  2. Costout of 100 · 30%70.6
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. John Muir Physician NetworkWalnut Creek, CA

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

Sergei Schegolev among 17,696 internal medicine physician records in California

Sergei Schegolev, 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
  • Graduated1983 · median 2004 among the 11,065 with a school on file
  • Record last updated2020 · 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).

183 internal medicine physician records list a practice address in Walnut Creek

They are 183 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Deborah Arce, M.D.Walnut Creek, CA 945971841215605
  2. Devorah Ben-Zeev, M.D.Walnut Creek, CA 945971033160692
  3. Natalie Chang, M.D.Walnut Creek, CA 945971548370786
  4. Paul Endo, M.D.Walnut Creek, CA 945971568402014
  5. Poornima Goyal, M.D.Walnut Creek, CA 945971912933706
  6. Elise Hughes-Watkins, M.D.Walnut Creek, CA 945971578509741
  7. Thomas Miller, MDWalnut Creek, CA 945971750315560
  8. Robert Noriega, M.D.Walnut Creek, CA 945971922043249

Common questions

What is Sergei Schegolev, M.D.'s NPI number?

Sergei Schegolev, M.D.'s National Provider Identifier (NPI) is 1376683805, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Sergei Schegolev, M.D. located?

The NPPES record lists a practice address at 1450 Treat Blvd, Walnut Creek, CA, 94597. Phone: (925) 296-9000. Providers update this record themselves, so call before visiting.

How can I verify Sergei Schegolev, M.D.'s license?

NPPES lists California license number A73183, 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 Sergei Schegolev, M.D. prescribe under Medicare Part D?

In 2024, Sergei Schegolev, M.D. had 409 Medicare Part D claims for 335 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Sergei Schegolev, M.D.'s MIPS final score?

The 2023 MIPS final score is 85.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.