NPPES file of Aug 9, 2026

Michelle Tanzil, D.O

Obstetrics & Gynecology Physician · Loma Linda, CA

Michelle Tanzil, D.O is an obstetrics & gynecology physician with a practice address in Loma Linda, California, and NPI 1578004156, issued on Mar 15, 2017. Check the license (California 20A13882, 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
1578004156
Name
Michelle Tanzil
Credential
D.O
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
20A13882 CA
Self-reported in NPPES; status is on the state search
Practice location
11175 Campus St, Loma Linda, CA 92350
Phone
(909) 651-5534
Enumerated
Mar 15, 2017
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20171011003595); 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 11175 Campus St

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

  1. Elisa ArnoldPhysician Assistant1215618053
  2. Rita Artounian MilagerdiPhysician Assistant1093497778
  3. Anamika Banerji, MDNeonatal-Perinatal Medicine Physician1770757528
  4. Jadelyn BautistaStudent in an Organized Health Care Education/Training Program1457001356
  5. Brandyn BeloteMedical Physician Assistant1477233765
  6. Linninea BoomNurse Practitioner1205281540

Verify Michelle Tanzil in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A13882
    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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47% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

88 Medicare Part D claims for 34 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Michelle Tanzil88
  2. Specialty average165

Most prescribed

  1. Clobetasol Propionate16 claims
  2. Estradiol15 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. Southern California Permanente Medical GroupOntario, CA

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

Michelle Tanzil among 5,088 obstetrics & gynecology physician records in California

Michelle Tanzil, D.O is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 87% of them.

  • NPI issued2017 · 87% of these records are older, 10% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2013 · median 2004 among the 2,700 with a school on file
  • Record last updated2021 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

59 obstetrics & gynecology physician records list a practice address in Loma Linda

They are 59 of the 4,863 NPPES records with a practice address in Loma Linda, and 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Oluwatomisin Bello Adejugba, MDLoma Linda, CA 923501982230975
  2. Sum Cheung, MDLoma Linda, CA 923501770799942
  3. Joy KimLoma Linda, CA 923501871112383
  4. Sam Siddighi, M.D.Loma Linda, CA 923501336207844
  5. Jay Hartstein, MDLake Arrowhead, CA 923521013652114
  6. George Remisovsky, M.D.Lake Arrowhead, CA 923521730122458
  7. Kevin Balli, M.D.Loma Linda, CA 923541083636260
  8. Brian Beitel, M.D.Highland, CA 923461710922141

Common questions

What is Michelle Tanzil, D.O's NPI number?

Michelle Tanzil, D.O's National Provider Identifier (NPI) is 1578004156, issued on Mar 15, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Michelle Tanzil, D.O located?

The NPPES record lists a practice address at 11175 Campus St, Loma Linda, CA, 92350. Phone: (909) 651-5534. Providers update this record themselves, so call before visiting.

How can I verify Michelle Tanzil, D.O's license?

NPPES lists California license number 20A13882, 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 Michelle Tanzil, D.O prescribe under Medicare Part D?

In 2024, Michelle Tanzil, D.O had 88 Medicare Part D claims for 34 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.