John Alchemy, MD
NPI 1659443307 · Family Medicine Physician · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Alchemy, MD is a Family Medicine Physician provider in Santa Rosa, CA (NPI 1659443307).
Provider details
- NPI number
- 1659443307
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A55085 (CA)
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
19 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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 69 | — |
| Tizanidine Hcl | 34 | — |
| Gabapentin | 31 | 13 |
| Nortriptyline Hcl | 26 | — |
| Baclofen | 19 | — |
| Amitriptyline Hcl | 19 | — |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 18 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Alchemy's NPI number?
- John Alchemy's National Provider Identifier (NPI) is 1659443307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Alchemy's specialty?
- John Alchemy is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Alchemy located?
- John Alchemy's practice location on file with NPPES is 1221 N Dutton Ave, Santa Rosa, CA 95401-4607.
- What is John Alchemy's phone number?
- The practice phone number listed in the NPPES registry for John Alchemy is (707) 543-8360.
- Does John Alchemy accept Medicare?
- John Alchemy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Alchemy's NPI active?
- Yes — John Alchemy's NPI (1659443307) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.