John W. Alchemy, MD
Family Medicine Physician · Santa Rosa, CA
John W. Alchemy, MD is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1659443307, issued on Nov 15, 2006. Check the license (California A55085, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John W. Alchemy
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A55085 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1221 N Dutton Ave, Santa Rosa, CA 95401
- Phone
- (707) 543-8360
- Enumerated
- Nov 15, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00A550850 CA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1221 N Dutton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Suzanne Kritz, PT, DPTPhysical Therapist1396343042
- Catherine Losada, FNPFamily Nurse Practitioner1164786992
- Ashlynn McQuaidAcupuncturist1659052488
- Hayley Murphy, PA-CPhysician Assistant1649963869
- Larry Oakes, PTLA, DPTPhysical Therapist1699382739
- Katerine Papadopoulos, NPAdult Health Nurse Practitioner1639465636
Verify John W. Alchemy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A55085Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
326 Medicare Part D claims for 41 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 94 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen69 claims
- Tizanidine Hcl34 claims
- Gabapentin31 claims
- Nortriptyline Hcl26 claims
- Amitriptyline Hcl19 claims
- Baclofen19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
John W. Alchemy among 17,133 family medicine physician records in California
John W. Alchemy, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
264 family medicine physician records list a practice address in Santa Rosa
They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Rosa → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Roberta Berg, MDSanta Rosa, CA 954011689643884
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- Lambert Daniel, MDSanta Rosa, CA 954011487688941
- Ellen Kruusmagi, MDSanta Rosa, CA 954011003831793
- Marshall Kubota, MDSanta Rosa, CA 954011245297969
- Patricia Kulawiak, MDSanta Rosa, CA 954011487649711
- Carla Longchamp, M.D.Santa Rosa, CA 954011972544948
- Jeremy Mesches, MDSanta Rosa, CA 954011245207026
Common questions
What is John W. Alchemy, MD's NPI number?
John W. Alchemy, MD's National Provider Identifier (NPI) is 1659443307, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John W. Alchemy, MD located?
The NPPES record lists a practice address at 1221 N Dutton Ave, Santa Rosa, CA, 95401. Phone: (707) 543-8360. Providers update this record themselves, so call before visiting.
How can I verify John W. Alchemy, MD's license?
NPPES lists California license number A55085, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John W. Alchemy, MD prescribe under Medicare Part D?
In 2024, John W. Alchemy, MD had 326 Medicare Part D claims for 41 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.