Quick answers
- Where does Donald B. Chalfin see patients?
- Medicare's clinician data lists 2 practice locations, including Berkeley, CA and Houston, TX. Call before your visit to confirm the address.
- What is Donald B. Chalfin's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty.
- Does Donald B. Chalfin accept Medicare assignment?
- Yes. Medicare's clinician data says Donald B. Chalfin 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.
- Does Donald B. Chalfin offer telehealth?
- Medicare's clinician data says Donald B. Chalfin offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Donald B. Chalfin?
- (845) 702-2711, as listed in official Medicare / NPI Registry data.
- What is Donald B. Chalfin's NPI number?
- 1366479545. 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 Donald B. Chalfin is enrolled with Medicare (CMS data updated 2026-10-02).
- 1749 Sonoma AveBerkeley, CA 94707 (845) 702‑2711
- 6565 Fannin StHouston, TX 77030 (845) 702‑2711
Group practices
Medicare enrollment lists Donald B. Chalfin as a member of this group (CMS data updated 2026-10-02).
- Ccmma Ca PC7 clinicians in the group
Specialties
- Critical Care (Intensivists)primary
Find other Critical Care (Intensivists) doctors in California →
Other critical care doctors in Berkeley
Clinicians with the same Medicare primary specialty in Berkeley, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1366479545 |
| 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