John Merrill, D.O.
NPI 1992152326 · Family Medicine Physician · Clarkston, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Merrill, D.O. is a Family Medicine Physician provider in Clarkston, WA (NPI 1992152326).
Provider details
- NPI number
- 1992152326
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A16056 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 139 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 694 | 187 |
| Amlodipine Besylate | 532 | 149 |
| Atorvastatin Calcium | 461 | 132 |
| Levothyroxine Sodium | 460 | 113 |
| Omeprazole | 417 | 131 |
| Rosuvastatin Calcium | 412 | 115 |
| Hydrochlorothiazide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$227 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 147 N Brent StVentura, CA 93003-2809Phone: (805) 652-5698
Registry dates
- Enumerated
- 2016-05-16
- Last updated
- 2022-07-21
- Certified
- 2021-08-18
Frequently asked questions
- What is John Merrill's NPI number?
- John Merrill's National Provider Identifier (NPI) is 1992152326, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Merrill's specialty?
- John Merrill is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Merrill located?
- John Merrill's practice location on file with NPPES is 1119 Highland Ave, Clarkston, WA 99403-2836.
- What is John Merrill's phone number?
- The practice phone number listed in the NPPES registry for John Merrill is (509) 758-1450.
- Does John Merrill accept Medicare?
- John Merrill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Merrill's NPI active?
- Yes — John Merrill's NPI (1992152326) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.