NPPES file of Aug 9, 2026

Mary Ann Markiewitz, PA-C

Surgical Physician Assistant · Sacramento, CA

Mary Ann Markiewitz, PA-C is a surgical physician assistant with a practice address in Sacramento, California, and NPI 1063588044, issued on Nov 28, 2006. Check the license (California PA18413, as entered in NPPES) with the California board that licenses this profession; 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
1063588044
Name
Mary Ann Markiewitz
Credential
PA-C
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
PA18413 CA
Self-reported in NPPES; status is on the state search
Practice location
1020 29TH St, Sacramento, CA 95816
Phone
(916) 733-3792
Enumerated
Nov 28, 2006
Record last updated
Mar 7, 2023
Fax
(916) 733-3805
Medicare enrollment
Enrolled (PECOS I20070207000428); 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 1020 29TH St

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

  1. Michael Abate, MDInternal Medicine Physician1548248131
  2. Adel Agaiby, M.D.Internal Medicine Physician1841201688
  3. Imran Ally, M.DHospitalist Physician1760740161
  4. Ator Auwinger, M.D.Internal Medicine Physician1467582494
  5. Inderpal Biring, O.D.Internal Medicine Physician1063668648
  6. Zaida Botello, M.D.Hospitalist Physician1275876294

Verify Mary Ann Markiewitz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA18413
    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
Find the California license search

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29% more Medicare Part D claims than the average surgical physician assistant in 2024

392 Medicare Part D claims for 258 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Mary Markiewitz392
  2. Specialty average304

Most prescribed

  1. Albuterol Sulfate Hfa59 claims
  2. Azithromycin43 claims
  3. Cephalexin31 claims
  4. Cefdinir28 claims
  5. Doxycycline Monohydrate26 claims
  6. Lagevrio (Eua)21 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. Sutter Valley Medical FoundationVacaville, CA

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

Mary Ann Markiewitz among 1,075 surgical physician assistant records in California

Mary Ann Markiewitz, PA-C is one of 1,075 surgical physician assistant 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 74% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2006 · median 2012 among the 649 with a school on file
  • Record last updated2023 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Physician Assistant providers in California

There are 1,075 surgical physician assistant records in California.

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Anastacia Amin, PA-CSacramento, CA 958161255314928
  2. Stephanie Bareis, PA-CSacramento, CA 958161033362645
  3. Jennifer Bowman, PA-CSacramento, CA 958161205900792
  4. Margarita Delgadillo, PA-C, MPHSacramento, CA 958161962666990
  5. Rosemary Forster, PASacramento, CA 958161043321565
  6. Nina Joe, PA-CSacramento, CA 958161619901188
  7. Catherine Lenz, PASacramento, CA 958161487741294
  8. Linda Lind, PASacramento, CA 958161871630558

Common questions

What is Mary Ann Markiewitz, PA-C's NPI number?

Mary Ann Markiewitz, PA-C's National Provider Identifier (NPI) is 1063588044, issued on Nov 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Ann Markiewitz, PA-C located?

The NPPES record lists a practice address at 1020 29TH St, Sacramento, CA, 95816. Phone: (916) 733-3792. Providers update this record themselves, so call before visiting.

How can I verify Mary Ann Markiewitz, PA-C's license?

NPPES lists California license number PA18413, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Ann Markiewitz, PA-C prescribe under Medicare Part D?

In 2024, Mary Ann Markiewitz, PA-C had 392 Medicare Part D claims for 258 beneficiaries; the average among surgical physician assistant prescribers was 304. 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.