Karl Riecken, DO
NPI 1255911889 · General Practice Physician · Seatac, WA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Riecken, DO is a General Practice Physician provider in Seatac, WA (NPI 1255911889).
Provider details
- NPI number
- 1255911889
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- DOL.OP.61499713 (WA)
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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 38 |
| Pantoprazole Sodium | 15 |
| Metformin Hcl | 14 |
| Montelukast Sodium | 14 |
| Metoprolol Succinate | 13 |
| Naproxen | 13 |
| Amlodipine Besylate | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 6700 Fort Dent Way Ste 100Tukwila, WA 98188-2504Phone: (206) 337-6080
Registry dates
- Enumerated
- 2021-04-08
- Last updated
- 2024-12-11
- Certified
- 2024-12-11
Frequently asked questions
- What is Karl Riecken's NPI number?
- Karl Riecken's National Provider Identifier (NPI) is 1255911889, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Riecken's specialty?
- Karl Riecken is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Riecken located?
- Karl Riecken's practice location on file with NPPES is 4327 S 181st St, Seatac, WA 98188-4549.
- What is Karl Riecken's phone number?
- The practice phone number listed in the NPPES registry for Karl Riecken is (407) 739-9354.
- Does Karl Riecken accept Medicare?
- Karl Riecken is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Riecken's NPI active?
- Yes — Karl Riecken's NPI (1255911889) is active in the NPPES registry as of the last update on 2024-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.