NPPES file of Aug 9, 2026

Ann F. Haas, M.D.

MOHS-Micrographic Surgery Physician · Sacramento, CA

Ann F. Haas, M.D. is a mohs-micrographic surgery physician with a practice address in Sacramento, California, and NPI 1538270707, issued on Aug 31, 2006. Check the license (California G55599, 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
1538270707
Name
Ann F. Haas
Credential
M.D.
Primary taxonomy
MOHS-Micrographic Surgery Physician 207ND0101X
License number
G55599 CA
Self-reported in NPPES; status is on the state search
Practice location
1020 29TH St, Sacramento, CA 95816
Phone
(916) 733-3792
Enumerated
Aug 31, 2006
Record last updated
Oct 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(916) 733-3805
Medicaid ID
00G555990 CA
Medicare enrollment
Enrolled (PECOS I20080724000706); accepts Medicare assignment
Medical or professional school
Warren Alpert Medical School Of Brown University, 1984
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 Ann F. Haas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G55599
    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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91% fewer Medicare Part D claims than the average mohs-micrographic surgery physician in 2024

53 Medicare Part D claims for 38 beneficiaries, against an average of 570 among the 1,396 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Ann Haas53
  2. Specialty average570

Most prescribed

  1. Cephalexin11 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. Regents OF The Univ OF CASacramento, CA

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

Ann F. Haas among 164 mohs-micrographic surgery physician records in California

Ann F. Haas, M.D. is one of 164 mohs-micrographic surgery physician records with a practice address in California. 95% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 95% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated1984 · median 2004 among the 143 with a school on file
  • Record last updated2020 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

MOHS-Micrographic Surgery Physician providers in California

There are 164 mohs-micrographic surgery physician records in California.

The 8 mohs-micrographic surgery physician records with the nearest ZIP codes

  1. Daniel Eisen, MDSacramento, CA 958161295784023
  2. Justin Fazio, M.D.Sacramento, CA 958161154853083
  3. Jayne Joo, M.D.Sacramento, CA 958161942468962
  4. Allison Weinkle, M.D.Sacramento, CA 958161619323755
  5. Summer YoukerSacramento, CA 958161760409742
  6. Michael Fazio, M.D.Sacramento, CA 958151730185695
  7. Thuzar Shin, MDSacramento, CA 958231720305352
  8. Andrea Willey, MDSacramento, CA 958251952317455

Common questions

What is Ann F. Haas, M.D.'s NPI number?

Ann F. Haas, M.D.'s National Provider Identifier (NPI) is 1538270707, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ann F. Haas, M.D. 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 Ann F. Haas, M.D.'s license?

NPPES lists California license number G55599, 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 Ann F. Haas, M.D. prescribe under Medicare Part D?

In 2024, Ann F. Haas, M.D. had 53 Medicare Part D claims for 38 beneficiaries; the average among mohs-micrographic surgery physician prescribers was 570. 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.