Quick answers
- Where does Richard J. Hahn see patients?
- Medicare's clinician data lists 1 practice location in Lancaster, CA. Call before your visit to confirm the address.
- What is Richard J. Hahn's specialty?
- Medicare lists General Surgery as the primary specialty, and also Vascular Surgery.
- Does Richard J. Hahn accept Medicare assignment?
- Medicare's clinician data says Richard J. Hahn may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Richard J. Hahn offer telehealth?
- Medicare's clinician data says Richard J. Hahn offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Richard J. Hahn?
- (661) 945-2221, as listed in official Medicare / NPI Registry data.
- What is Richard J. Hahn's NPI number?
- 1508927997. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Richard J. Hahn is enrolled with Medicare (CMS data updated 2026-10-02).
- 1523 W Ave J, Suite 7Lancaster, CA 93534 (661) 945‑2221
Group practices
Medicare enrollment lists Richard J. Hahn as a member of this group (CMS data updated 2026-10-02).
- Av Pediatrics Medical Associates. Inc.5 clinicians in the group
Specialties
- General Surgeryprimary
- Vascular Surgeryalso
Other general surgeons in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1972 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1508927997 |
| Corrections | Report an error or suggest an update → |
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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians