Dr. John Ray Schafer, MD
- Medicare services, 2020
- 62
- Part D claims, 2021
- 42
- Industry payments
- $13,160
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 270 Perkins Street, Sonoma, CA 95476-6955
- Practice phone
- Call (707) 938-3131
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
John R Schafer & Clayton F Drake
Primary care practice · Sonoma, California
Find Dr. Schafer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Ray Schafer is a family medicine physician in Sonoma, California
Dr. Schafer practices at John R Schafer & Clayton F Drake in Sonoma, California.
Dr. Schafer's NPI, 1386605228, was assigned on March 30, 2006. Dr. Schafer graduated from Pritzker School of Medicine in 1959. Dr. Schafer holds California license G62440.
- NPI
- 1386605228NPI Registry (opens in a new tab)
- NPI enumeration date
- March 30, 2006
- NPI status
- Active
- Practice phone
- (707) 938-3131
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1959
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Ray Schafer practices at John R Schafer & Clayton F Drake in Sonoma, California
Dr. Schafer's primary practice is John R Schafer & Clayton F Drake, at 270 Perkins Street, Sonoma, CA 95476-6955. The practice phone is (707) 938-3131.
- John R Schafer & Clayton F Drake270 Perkins Street, Sonoma, CA 95476-6955Phone(707) 938-3131
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Ray Schafer is affiliated with 1 site of care and 1 medical group
Dr. Schafer's primary practice is John R Schafer & Clayton F Drake in Sonoma, California. Dmand AI also links Dr. Schafer to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. John Ray Schafer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schafer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John R Schafer & Clayton F Drake | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Ray Schafer is one of 15,680 family medicine physicians in California
Family medicine is Dr. Schafer's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Schafer is board certified in family medicine by the National Board of Physicians and Surgeons. Dr. Schafer is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Schafer
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Ray Schafer billed Medicare for 62 services in 2020
CMS data shows 62 Medicare services from Dr. Schafer across 2 procedure codes in 2020. Medicare paid $1,618 for them. Every service was in an office.
Dr. Schafer's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 8132020: 5194%
- Other services
- 2019: 2972020: 1196%
- Drugs given in the office
- 2019: 5532020: 0100%
- Lab and pathology
- 2019: 272020: 0100%
- Tests and treatments
- 2019: 2792020: 0100%
- Surgery
- 2019: 1562020: 0100%
Dr. Schafer compared with the California median for family medicine physicians, 2020
- Dr. Schafer
- California median
- Medicare services
- 62vs 24675% below
- Part D claims
- 42vs 83395% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Schafer's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Schafer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schafer and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Ray Schafer's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Schafer's median patient age at 72, with 41% women.
Dr. Schafer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women41%
- Men59%
Source: Dmand AI Patient Panel Data
Dr. John Ray Schafer wrote 42 Medicare Part D claims in 2021
In 2021, Dr. Schafer wrote 42 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $460 in total drug cost. In 2020, CMS named 750 claims across 32 drugs.
Dr. Schafer's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 7502021: 4294%
Drugs named by CMS: 3 in 2021, 32 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John Ray Schafer received $13,160 in industry payments from 2016 to 2023
CMS Open Payments shows 438 general payments to Dr. Schafer from 47 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 56% of the total. Sanofi and Genzyme US Companies paid the most, $6,050.
General payments to Dr. Schafer by program year, 2016 to 2023
General payments to Dr. Schafer by kind, 2016 to 2023
- Food and beverage$7,43256%
- Speaker and faculty fees$4,84737%
- Travel and lodging$7766%
- Education$1051%
Companies that paid Dr. Schafer the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Ray Schafer has 1 award and honors on record
Dmand AI lists 1 award for Dr. Schafer, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Schafer
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. John Ray Schafer graduated from Pritzker School of Medicine
Dr. Schafer graduated from Pritzker School of Medicine in 1959. Dr. Schafer is a member of AAFP.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. John Ray Schafer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Ray Schafer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Ray Schafer's NPI number?
Dr. John Ray Schafer's NPI number is 1386605228. It was assigned on March 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Ray Schafer?
Dr. John Ray Schafer is a family medicine physician in Sonoma, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John Ray Schafer practice?
Dr. Schafer practices at 270 Perkins Street, Sonoma, CA 95476-6955. Dr. Schafer's primary practice is John R Schafer & Clayton F Drake in Sonoma, California. Dmand AI also links Dr. Schafer to 1 medical group.
What is Dr. John Ray Schafer's office phone number?
The practice phone on file for Dr. Schafer is (707) 938-3131.
What is Dr. John Ray Schafer's medical license number?
Dr. Schafer holds California license G62440.
Does Dr. John Ray Schafer accept Medicare?
Yes. CMS data shows Dr. Schafer billed Medicare for 62 services in 2020.
Is Dr. John Ray Schafer board certified?
Yes. Dr. Schafer is board certified in family medicine by the National Board of Physicians and Surgeons.
What services does Dr. John Ray Schafer bill to Medicare?
In 2020, Dr. Schafer's most billed Medicare services were office visit, established patient (99213) and medicare service (G0439).
Where did Dr. John Ray Schafer go to medical school?
Dr. Schafer graduated from Pritzker School of Medicine in 1959.
What drugs does Dr. John Ray Schafer prescribe most?
In 2021 Medicare Part D data, Dr. Schafer's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Simvastatin.
Has Dr. John Ray Schafer received payments from drug or device companies?
CMS Open Payments shows $13,160 in general payments to Dr. Schafer from 47 companies from 2016 to 2023. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. John Ray Schafer been practicing?
Dr. Schafer graduated from medical school in 1959, 67 years ago.
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