Mark Knowles, PA
NPI 1528167277 · Physician Assistant · Watertown, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Knowles, PA is a Physician Assistant provider in Watertown, NY (NPI 1528167277).
Provider details
- NPI number
- 1528167277
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- NY1605-1 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Knowles's NPI number?
- Mark Knowles's National Provider Identifier (NPI) is 1528167277, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Knowles's specialty?
- Mark Knowles is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Knowles located?
- Mark Knowles's practice location on file with NPPES is 457 Gaffney Drive, Watertown, NY 13601-1834.
- What is Mark Knowles's phone number?
- The practice phone number listed in the NPPES registry for Mark Knowles is (315) 779-2273.
- Does Mark Knowles accept Medicare?
- Mark Knowles is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Knowles's NPI active?
- Yes — Mark Knowles's NPI (1528167277) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.