M. F. Diffendall Od PA in Phoenix, MD
This organization bills under NPI 1194074476, an organization record issued on Sep 2, 2012 with the primary taxonomy Optometrist. Each clinician who works there has their own NPI and license.
Organization recordNPPES, Aug 2026
1194074476
- Legal name
- M. F. Diffendall Od PA
- Entity
- Type 2 · organization
- Primary taxonomy
- Optometrist 152W00000X
- Practice location
- 3332 PAPER MILL RD, Phoenix, MD 21131
- Phone
- 410-628-1510
- Enumerated
- Sep 2, 2012
- Record updated
- Nov 14, 2013
- Authorized official
- Owner (title as filed)
2 clinicians CMS lists with M F Diffendall Od in Phoenix
- Michael Diffendall, ODOptometrist1184667057
- Johanna Letts, ODOptometrist1558319707
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the Maryland secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
Common questions
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.