Karl Johnson, DPM
NPI 1861832818 · Foot & Ankle Surgery Podiatrist · Clarkston, WA
Enrolled with Medicare as Practitioner - Podiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Johnson, DPM is a Foot & Ankle Surgery Podiatrist provider in Clarkston, WA (NPI 1861832818).
Provider details
- NPI number
- 1861832818
- Entity type
- Individual
- Primary specialty
- Foot & Ankle Surgery PodiatristPodiatric Medicine & Surgery Service Providers
- Credential
- DPM
- Sex
- Male
- Sole proprietor
- No
- License
- T53-2013 (TX)
Specialties & taxonomies
Podiatric Medicine & Surgery Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 31 | 24 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 19 | 14 |
| Terbinafine Hcl | 19 | 19 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 15 | 14 |
| Doxycycline Hyclate | 12 | 11 |
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 no Part D record, 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
Registry dates
- Enumerated
- 2013-07-04
- Last updated
- 2025-05-29
- Certified
- 2025-05-29
Frequently asked questions
- What is Karl Johnson's NPI number?
- Karl Johnson's National Provider Identifier (NPI) is 1861832818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Johnson's specialty?
- Karl Johnson is listed in the NPPES registry with a primary specialty of Foot & Ankle Surgery Podiatrist (Podiatric Medicine & Surgery Service Providers).
- Where is Karl Johnson located?
- Karl Johnson's practice location on file with NPPES is 1119 Highland Ave Ste 7, Clarkston, WA 99403-2836.
- What is Karl Johnson's phone number?
- The practice phone number listed in the NPPES registry for Karl Johnson is (509) 758-1119.
- Does Karl Johnson accept Medicare?
- Karl Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Johnson's NPI active?
- Yes — Karl Johnson's NPI (1861832818) is active in the NPPES registry as of the last update on 2025-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.