NPPES file of Aug 9, 2026

Donald Mark Alpiner, DO

Surgery Physician · Upland, CA

Donald Mark Alpiner, DO is a surgery physician with a practice address in Upland, California, and NPI 1811086952, issued on Oct 12, 2006. Check the license (California 20A4758, 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
1811086952
Name
Donald Mark Alpiner
Credential
DO
Primary taxonomy
Surgery Physician 208600000X
License number
20A4758 CA
Self-reported in NPPES; status is on the state search
Practice location
999 San Bernardino RD, Upland, CA 91786
Phone
(909) 239-1621
Enumerated
Oct 12, 2006
Record last updated
Jun 20, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(909) 981-7713
Medicaid ID
00AX47580 CA
Medicare enrollment
Enrolled (PECOS I20050728001163); 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 999 San Bernardino RD

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

  1. Lisa AgrasoNeonatal Clinical Nurse Specialist1407700438
  2. James Akamine, M.D.Diagnostic Radiology Physician1497790125
  3. Ahmed Al-WaisiInternal Medicine Physician1871115709
  4. Alexander ArzooStudent in an Organized Health Care Education/Training Program1891635629
  5. Liezl Avila, D.O.Emergency Medicine Physician1487064515
  6. Wendy BarretoGeneral Practice Physician1326683582

Verify Donald Mark Alpiner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A4758
    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

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78% fewer Medicare Part D claims than the average surgery physician in 2024

32 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Donald Alpiner32
  2. Specialty average147

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.

Surgery Physician providers in California

There are 3,118 surgery physician records in California.

Other surgery physician records in California

  1. Miriam Abaunza, M.D.Los Angeles, CA1538470778
  2. Hana Abdirahman, MDTemecula, CA1265288112
  3. Sherwin Abdoli, MDPetaluma, CA1508386442
  4. Mhdshafic Abdulkarim, MDOrange, CA1750174249
  5. Sarah Abdulla, M.D.Baldwin Park, CA1699200840
  6. Shoko Abe, M.D.Berkeley, CA1609178136
  7. Stuart Abel, M.D.Los Angeles, CA1750761516
  8. Elliot Abemayor, MDLos Angeles, CA1972527414
  9. Marc Abi Karam, MD, MSPalo Alto, CA1437846508
  10. Ali Abidali, DOGlendora, CA1861888794

Common questions

What is Donald Mark Alpiner, DO's NPI number?

Donald Mark Alpiner, DO's National Provider Identifier (NPI) is 1811086952, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donald Mark Alpiner, DO located?

The NPPES record lists a practice address at 999 San Bernardino RD, Upland, CA, 91786. Phone: (909) 239-1621. Providers update this record themselves, so call before visiting.

How can I verify Donald Mark Alpiner, DO's license?

NPPES lists California license number 20A4758, 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 Donald Mark Alpiner, DO prescribe under Medicare Part D?

In 2024, Donald Mark Alpiner, DO had 32 Medicare Part D claims; the average among surgery physician prescribers was 147. 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.