Quick answers
- Where does Ronald B. Penfield see patients?
- Medicare's clinician data lists 1 practice location in Lansing, MI. Call before your visit to confirm the address.
- What is Ronald B. Penfield's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Ronald B. Penfield accept Medicare assignment?
- Yes. Medicare's clinician data says Ronald B. Penfield 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 Ronald B. Penfield?
- (517) 667-0061, as listed in official Medicare / NPI Registry data.
- What is Ronald B. Penfield's NPI number?
- 1023161064. 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 Ronald B. Penfield is enrolled with Medicare (CMS data updated 2026-10-02).
- 1801 E Saginaw St, Suite 1Lansing, MI 48912 (517) 667‑0061
Group practices
Medicare enrollment lists Ronald B. Penfield as a member of this group (CMS data updated 2026-10-02).
- GPS Guide to Personal Solutions5 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Lansing
Clinicians with the same Medicare primary specialty in Lansing, MI — not a recommendation.
Clinician information
| Graduation year | 1971 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023161064 |
| 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