Ann F. Haas, MD

Medicare activity in 2024

Official CMS public-use data for Ann F. Haas, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks (17311)306 services
2. Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks (17312)138 services
3. Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm (12052)97 services
4. Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm (12032)54 services
5. Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm (11602)38 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure69%
• High cholesterol69%
• Arthritis42%
• Chronic kidney disease27%
• Diabetes25%
• Ischemic heart disease22%

Hospitals where Ann F. Haas works

Medicare's Facility Affiliation Data lists Ann F. Haas at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• University of California Davis Medical CenterSacramento, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050599

Practice locations

Addresses where Ann F. Haas is enrolled with Medicare (CMS data updated October 2, 2026).

• 3301 C StSacramento, CA 95816
• 3301 C St, Suite 800bSacramento, CA 95816 (916) 703‑3300

Group practices

Medicare enrollment lists Ann F. Haas as a member of this group (CMS data updated October 2, 2026).

• Regents of the Univ of Ca1,584 clinicians in the group

Specialties

• Micrographic Dermatologic Surgery (MDS)primary
• Dermatologyalso

Find other Micrographic Dermatologic Surgery (MDS) doctors in California →

Other dermatologic surgeons in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

• Michael S. Hamman, MD
• Konstantin V. Grigoryan, MD
• Michael Dacey, MD
• Duane C. Whitaker, MD
• John Geisse, MD
• Ralph A. Massey, MD
• Ekama O. Carlson, MD
• Kristen A. Richards, MD

All dermatologic surgeons in California →

Other clinicians in Regents of the Univ of Ca

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Shiro Urayama, MD
• Jayvani M. Thakur Garcia, MD
• Imo A. Ebong, MD
• Lara L. Zimmermann, MD
• Han S. Lee, MD
• Merna Naji, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians