Dr. Mark A. Hofer, MD
- Part D claims, 2024
- 20
- Hospital affiliations
- 1
- Industry payments
- $1,273
- Medical group
- 1
- Insurance carriers
- 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. Hofer's professional email, personal email and mobile number
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Dr. Mark A. Hofer is an orthopedic surgeon in Stockton, California
Dr. Hofer practices at Permanente Medical Group Inc in Stockton, California.
Dr. Hofer's NPI, 1386635639, was assigned on November 3, 2005. Dr. Hofer graduated from Pritzker School of Medicine in 2002. Dr. Hofer holds California license A84172.
- NPI
- 1386635639NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709945009
- NPI enumeration date
- November 3, 2005
- 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
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark A. Hofer practices at Permanente Medical Group Inc in Stockton, California
Dr. Hofer'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. Mark A. Hofer is affiliated with 2 sites of care and 1 medical group
Dr. Hofer's primary practice is Permanente Medical Group Inc in Stockton, California. Dr. Hofer is also affiliated with Sacramento Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark A. Hofer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hofer 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. Mark A. Hofer is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Hofer's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Hofer is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Hofer is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists carpal tunnel syndrome, hip replacement, knee replacement and pelvic and hip fracture among the conditions Dr. Hofer treats.
Orthopedic surgeons near Dr. Hofer
Counts of orthopedic surgeons 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. Mark A. Hofer's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Hofer's median patient age at 60, with 54% women.
Dr. Hofer'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
- Women54%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. Mark A. Hofer wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Hofer wrote 20 Medicare Part D claims for 18 patients. 95% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $151 in total drug cost. In 2022, CMS named 37 claims across 2 drugs.
Dr. Hofer's Part D claims by kind of drug, 2024
- Generic19 claims95%
- Brand-name and other1 claims5%
Dr. Hofer's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Hofer's Part D claims, 2024
- Opioids70%14 of 20 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 372023: 1754%
Drugs named by CMS: 1 in 2023, 2 in 2022.
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. Mark A. Hofer takes part in Medicare
Dr. Hofer 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. Mark A. Hofer received $1,273 in industry payments from 2016 to 2024
CMS Open Payments shows 7 general payments to Dr. Hofer from 2 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 91% of the total. DePuy Synthes Sales Inc. paid the most, $1,238.
General payments to Dr. Hofer by program year, 2016 to 2024
General payments to Dr. Hofer by kind, 2016 to 2024
- Travel and lodging$1,15791%
- Food and beverage$1169%
Companies that paid Dr. Hofer the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark A. Hofer graduated from Pritzker School of Medicine
Dr. Hofer graduated from Pritzker School of Medicine in 2002.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Mark A. Hofer accepts plans from 2 insurance carriers
Dr. Hofer is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Hofer accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark A. Hofer'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 DataDmand AI Org Hierarchy 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) |
| Industry payments | Open Payments (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. Mark A. Hofer
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. Mark A. Hofer's NPI number?
Dr. Mark A. Hofer's NPI number is 1386635639. It was assigned on November 3, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Hofer?
Dr. Mark A. Hofer is an orthopedic surgeon in Stockton, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Mark A. Hofer practice?
Dr. Hofer practices at 7373 West Ln, Stockton, CA 95210. Dr. Hofer's primary practice is Permanente Medical Group Inc in Stockton, California.
What is Dr. Mark A. Hofer's office phone number?
The practice phone on file for Dr. Hofer is (209) 476-2000.
What is Dr. Mark A. Hofer's medical license number?
Dr. Hofer holds California license A84172.
Which hospitals is Dr. Mark A. Hofer affiliated with?
Dr. Hofer is affiliated with Sacramento Medical Center.
What medical group is Dr. Mark A. Hofer part of?
Dr. Hofer is linked to The Permanente Medical Group, Inc.
Does Dr. Mark A. Hofer accept Medicare?
Yes. CMS lists Dr. Hofer as accepting Medicare assignment.
Is Dr. Mark A. Hofer board certified?
Yes. Dr. Hofer is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
Where did Dr. Mark A. Hofer go to medical school?
Dr. Hofer graduated from Pritzker School of Medicine in 2002.
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What drugs does Dr. Mark A. Hofer prescribe most?
In 2023 Medicare Part D data, Dr. Hofer's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Mark A. Hofer received payments from drug or device companies?
CMS Open Payments shows $1,273 in general payments to Dr. Hofer from 2 companies from 2016 to 2024. The largest total came from DePuy Synthes Sales Inc.
How long has Dr. Mark A. Hofer been practicing?
Dr. Hofer graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Mark A. Hofer accept?
Dr. Hofer is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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