Dr. Joel Robert Schaffer, MD
- Part D claims, 2024
- 32
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 1
- State licenses
- 2
- Practice address
- 7373 West Ln, Stockton, CA 95210
- Practice phone
- Call (209) 476-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Stockton, California
Find Dr. Schaffer'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. Joel Robert Schaffer is a physiatrist in Stockton, California
Dr. Schaffer practices at Permanente Medical Group Inc in Stockton, California.
Dr. Schaffer's NPI, 1992955355, was assigned on September 23, 2008. Dr. Schaffer graduated from University Of Minnesota Medical School in 2008. Dr. Schaffer's Massachusetts license number on file is 248862.
- NPI
- 1992955355NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931359650
- NPI enumeration date
- September 23, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 476-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joel Robert Schaffer practices at Permanente Medical Group Inc in Stockton, California
Dr. Schaffer's primary practice is Permanente Medical Group Inc, at 7373 West Ln, Stockton, CA 95210 in San Joaquin County. The practice phone is (209) 476-2000.
- Permanente Medical Group Inc7373 West Ln, Stockton, CA 95210 · San Joaquin CountyPhone(209) 476-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joel Robert Schaffer is affiliated with 2 sites of care and 1 medical group
Dr. Schaffer's primary practice is Permanente Medical Group Inc in Stockton, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Schaffer to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Joel Robert Schaffer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schaffer practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joel Robert Schaffer is one of 1,234 physiatrists in California
Physical medicine and rehabilitation is Dr. Schaffer's primary specialty in the NPI Registry, under taxonomy code 208100000X. Dr. Schaffer is board certified in physical medicine & rehabilitation by the American Board of Physical Medicine and Rehabilitation. Dmand AI has Dr. Schaffer's licenses on file in 2 states: Massachusetts and California.
Specialties and state licenses
- Physical medicine and rehabilitation, MassachusettsPrimary
- California license
Clinical focus
Dmand AI lists joint pain among the conditions Dr. Schaffer treats.
Physiatrists near Dr. Schaffer
Counts of physiatrists 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. Joel Robert Schaffer's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Schaffer's median patient age at 60, with 64% women.
Dr. Schaffer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women64%
- Men36%
Source: Dmand AI Patient Panel Data
Dr. Joel Robert Schaffer wrote 32 Medicare Part D claims in 2024
In 2024, Dr. Schaffer wrote 32 Medicare Part D claims for 23 patients. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $57 in total drug cost.
Dr. Schaffer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Joel Robert Schaffer takes part in Medicare
Dr. Schaffer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joel Robert Schaffer graduated from University Of Minnesota Medical School
Dr. Schaffer graduated from University Of Minnesota Medical School in 2008.
- Medical school
- Board certified in physical medicine & rehabilitation
Source: Dmand AI Professional Profile Data
Dr. Joel Robert Schaffer accepts plans from 1 insurance carrier
Dr. Schaffer is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Schaffer accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Joel Robert Schaffer'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Joel Robert Schaffer
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. Joel Robert Schaffer's NPI number?
Dr. Joel Robert Schaffer's NPI number is 1992955355. It was assigned on September 23, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Joel Robert Schaffer?
Dr. Joel Robert Schaffer is a physiatrist in Stockton, California. The primary specialty in the NPI Registry is Physical Medicine & Rehabilitation Physician (taxonomy code 208100000X).
Where does Dr. Joel Robert Schaffer practice?
Dr. Schaffer practices at 7373 West Ln, Stockton, CA 95210. Dr. Schaffer's primary practice is Permanente Medical Group Inc in Stockton, California. Dmand AI also links Dr. Schaffer to 1 group practice or clinic.
What is Dr. Joel Robert Schaffer's office phone number?
The practice phone on file for Dr. Schaffer is (209) 476-2000.
What is Dr. Joel Robert Schaffer's medical license number?
Dr. Schaffer's Massachusetts license number on file is 248862, one of the licenses on file in 2 states.
Which states has Dr. Joel Robert Schaffer been licensed in?
Dmand AI has state licenses on file for Dr. Schaffer in Massachusetts (2011 to 2014) and California (2012 to 2026).
What medical group is Dr. Joel Robert Schaffer part of?
Dr. Schaffer is linked to The Permanente Medical Group, Inc.
Does Dr. Joel Robert Schaffer accept Medicare?
Yes. CMS lists Dr. Schaffer as accepting Medicare assignment.
Is Dr. Joel Robert Schaffer board certified?
Yes. Dr. Schaffer is board certified in physical medicine & rehabilitation by the American Board of Physical Medicine and Rehabilitation.
Where did Dr. Joel Robert Schaffer go to medical school?
Dr. Schaffer graduated from University Of Minnesota Medical School in 2008.
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What drugs does Dr. Joel Robert Schaffer prescribe most?
In 2024 Medicare Part D data, Dr. Schaffer's most prescribed drugs by claims were Lorazepam.
How long has Dr. Joel Robert Schaffer been practicing?
Dr. Schaffer graduated from medical school in 2008, 18 years ago.
What insurance does Dr. Joel Robert Schaffer accept?
Dr. Schaffer is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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