John Szerszen
NPI 1871992479 · Dentist · Mill Creek, WA
John Szerszen is a Dentist provider in Mill Creek, WA (NPI 1871992479).
Provider details
- NPI number
- 1871992479
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 63945 (CA)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 33 | 24 |
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
Additional practice locations (1)
- 23 Mt Wilson WayClayton, CA 94517-1642Phone: (770) 617-6628
Registry dates
- Enumerated
- 2014-08-19
- Last updated
- 2020-05-17
- Certified
- 2020-05-17
Frequently asked questions
- What is John Szerszen's NPI number?
- John Szerszen's National Provider Identifier (NPI) is 1871992479, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Szerszen's specialty?
- John Szerszen is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is John Szerszen located?
- John Szerszen's practice location on file with NPPES is 16030 Bothell Everett Hwy Ste 260, Mill Creek, WA 98012-1274.
- What is John Szerszen's phone number?
- The practice phone number listed in the NPPES registry for John Szerszen is (425) 745-9420.
- Is John Szerszen's NPI active?
- Yes — John Szerszen's NPI (1871992479) is active in the NPPES registry as of the last update on 2020-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.