Ryan Riessen, DO
NPI 1225662547 · Internal Medicine Physician · Grafenwoehr
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Riessen, DO is a Internal Medicine Physician provider in Grafenwoehr (NPI 1225662547).
Provider details
- NPI number
- 1225662547
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101026462 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2020-02-25
- Last updated
- 2024-08-08
- Certified
- 2024-08-08
Frequently asked questions
- What is Ryan Riessen's NPI number?
- Ryan Riessen's National Provider Identifier (NPI) is 1225662547, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Riessen's specialty?
- Ryan Riessen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Riessen located?
- Ryan Riessen's practice location on file with NPPES is Bldg 475, Grafenwoehr, 92655.
- What is Ryan Riessen's phone number?
- The practice phone number listed in the NPPES registry for Ryan Riessen is (314) 950-3000.
- Does Ryan Riessen accept Medicare?
- Ryan Riessen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Riessen's NPI active?
- Yes — Ryan Riessen's NPI (1225662547) is active in the NPPES registry as of the last update on 2024-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.