What is Mark Ritter's NPI number?

Mark Ritter's National Provider Identifier (NPI) is 1235192857, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Ritter's specialty?

Mark Ritter is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).

Where is Mark Ritter located?

Mark Ritter's practice location on file with NPPES is 8941 Wildlife Loop, Sarasota, FL 34238-4001.

What is Mark Ritter's phone number?

The practice phone number listed in the NPPES registry for Mark Ritter is (608) 220-0892.

Is Mark Ritter's NPI active?

Yes — Mark Ritter's NPI (1235192857) is active in the NPPES registry as of the last update on 2020-07-01.

IndividualActive

Mark Ritter, MD PHD

NPI 1235192857 · Radiation Oncology Physician · Sarasota, FL

Mark Ritter, MD PHD is a Radiation Oncology Physician provider in Sarasota, FL (NPI 1235192857).

Provider details

NPI number: 1235192857
Entity type: Individual
Primary specialty: Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
Credential: MD PHD
Sex: Male
Sole proprietor: No
License: 29294 (WI)

Specialties & taxonomies

Radiation Oncology PhysicianPrimary2085R0001XLicense 29294 (WI)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 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

8941 Wildlife Loop

Sarasota, FL 34238-4001

Phone: (608) 220-0892

Street-level locationGet directions

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Mailing address