NPPES file of Aug 9, 2026

Peter Bastian, MD

Public Health & General Preventive Medicine Physician · Loma Linda, CA

Peter Bastian, MD is a public health & general preventive medicine physician with a practice address in Loma Linda, California, and NPI 1710299821, issued on Jul 6, 2010. Check the license (California A147445, 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
1710299821
Name
Peter Bastian
Credential
MD
Primary taxonomy
Public Health & General Preventive Medicine Physician 2083P0901X
License number
A147445 CA
Self-reported in NPPES; status is on the state search
Practice location
24785 Stewart St Ste 204, Loma Linda, CA 92350
Phone
(909) 558-4594
Enumerated
Jul 6, 2010
Record last updated
Oct 15, 2024
Medicare enrollment
Enrolled (PECOS I20190410001855); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 2010
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 24785 Stewart St Ste 204

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

  1. Samantha AyoubAddiction Medicine (Family Medicine) Physician1346701174
  2. Deborah Carritte, M.D.Anesthesiology Physician1932140910
  3. Anita Sarkar, MDStudent in an Organized Health Care Education/Training Program1871176420
  4. Mitchell Schoen, M.D.Addiction Medicine (Family Medicine) Physician1659802767
  5. Richel Strydom, M.D.Public Health & General Preventive Medicine Physician1275768350

Verify Peter Bastian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A147445
    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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33% more Medicare Part D claims than the average public health & general preventive medicine physician in 2024

1,093 Medicare Part D claims for 203 beneficiaries, against an average of 820 among the 336 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Peter Bastian1,093
  2. Specialty average820

Most prescribed

  1. Metformin Hcl Er85 claims
  2. Topiramate83 claims
  3. Metformin Hcl78 claims
  4. Ozempic56 claims
  5. Losartan Potassium42 claims
  6. Naltrexone Hcl38 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): 85.2 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 score71.8
  2. Costout of 100 · 30%64.5
  3. Promoting interoperabilityout of 100 · 25%82.0
  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. Vituity Physician Services PCRedlands, CA

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

Peter Bastian among 325 public health & general preventive medicine physician records in California

Peter Bastian, MD is one of 325 public health & general preventive medicine physician records with a practice address in California. 27% 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 57% of them.

  • NPI issued2010 · 57% of these records are older, 39% newer
  • In a Medicare fileYes · 27% of these records are
  • In the CMS Doctors and Clinicians fileYes · 13% of these records are
  • Graduated2010 · median 2008 among the 42 with a school on file
  • Record last updated2024 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083P0901X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Public Health & General Preventive Medicine Physician providers in California

There are 325 public health & general preventive medicine physician records in California.

The 8 public health & general preventive medicine physician records with the nearest ZIP codes

  1. Silvia Caswell, DOLoma Linda, CA 923501114585148
  2. Rebecca Chung, M.D.Loma Linda, CA 923501073875753
  3. Tonya Cramer, M.D., MPHLoma Linda, CA 923501083972350
  4. Leah Humann, M.D.Loma Linda, CA 923501639527286
  5. Stephen Kumar, M.D.Loma Linda, CA 923501356550909
  6. Belliny Phaeton, MDLoma Linda, CA 923501699265629
  7. Richel Strydom, M.D.Loma Linda, CA 923501275768350
  8. Serena TonstadLoma Linda, CA 923501023258290

Common questions

What is Peter Bastian, MD's NPI number?

Peter Bastian, MD's National Provider Identifier (NPI) is 1710299821, issued on Jul 6, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Peter Bastian, MD located?

The NPPES record lists a practice address at 24785 Stewart St Ste 204, Loma Linda, CA, 92350. Phone: (909) 558-4594. Providers update this record themselves, so call before visiting.

How can I verify Peter Bastian, MD's license?

NPPES lists California license number A147445, 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 Peter Bastian, MD prescribe under Medicare Part D?

In 2024, Peter Bastian, MD had 1,093 Medicare Part D claims for 203 beneficiaries; the average among public health & general preventive medicine physician prescribers was 820. Part D covers Medicare prescriptions only.

What is Peter Bastian, MD's MIPS final score?

The 2023 MIPS final score is 85.2 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.