Quick answers
- Where does Marshall D. Allen see patients?
- Medicare's clinician data lists 2 practice locations, including Selma, CA and Reedley, CA. Call before your visit to confirm the address.
- What is Marshall D. Allen's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Marshall D. Allen accept Medicare assignment?
- Yes. Medicare's clinician data says Marshall D. Allen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Marshall D. Allen?
- (559) 582-9000, as listed in official Medicare / NPI Registry data.
- What is Marshall D. Allen's NPI number?
- 1871527689. 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 Marshall D. Allen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1141 Rose AveSelma, CA 93662 (559) 582‑9000
- 372 W Cypress AveReedley, CA 93654 (559) 582‑9000
Group practices
Medicare enrollment lists Marshall D. Allen as a member of this group (CMS data updated 2026-10-02).
- Comfort Anesthesia Associates Inc77 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), California →
Other nurse anesthetists in Selma
Clinicians with the same Medicare primary specialty in Selma, CA — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 1974 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871527689 |
| 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