Dr. Jeffrey Thomas Bortz, MD
- Medicare services, 2024
- 1,404
- Medicare patients, 2024
- 374
- Part D claims, 2024
- 137
- MIPS score, 2024
- 99
- Industry payments
- $4,916
- Practice address
- 355 Lennon Ln, Walnut Creek, CA 94598
- Practice phone
- Call (925) 357-9050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Callista Surgery Center, LLC
Walnut Creek, California
Find Dr. Bortz'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. Jeffrey Thomas Bortz is a mohs-micrographic surgery physician in Walnut Creek, California
Dr. Bortz practices at Callista Surgery Center, LLC in Walnut Creek, California.
Dr. Bortz's NPI, 1710191382, was assigned on May 10, 2007. Dr. Bortz graduated from Carver College of Medicine in 1989. Dr. Bortz holds California license A487440.
- NPI
- 1710191382NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719084839
- NPI enumeration date
- May 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 357-9050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey Thomas Bortz practices at Callista Surgery Center, LLC in Walnut Creek, California
Dr. Bortz's primary practice is Callista Surgery Center, LLC, at 355 Lennon Ln, Walnut Creek, CA 94598 in Contra Costa County. The practice phone is (925) 357-9050.
- Callista Surgery Center, LLC355 Lennon Ln, Walnut Creek, CA 94598 · Contra Costa CountyPhone(925) 357-9050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jeffrey Thomas Bortz is affiliated with 2 sites of care and 1 medical group
Dr. Bortz's primary practice is Callista Surgery Center, LLC in Walnut Creek, California. The medical group on file is Golden State Dermatology. Dmand AI also links Dr. Bortz 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. Jeffrey Thomas Bortz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bortz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Callista Surgery Center, LLC | 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. Jeffrey Thomas Bortz is one of 156 mohs-micrographic surgery physicians in California
Mohs-micrographic surgery is Dr. Bortz's primary specialty in the NPI Registry, under taxonomy code 207ND0101X. Dr. Bortz is board certified in dermatology by the American Board of Dermatology. Dr. Bortz is licensed in California.
Specialties and state licenses
- Mohs-micrographic surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cancerous skin growth removal, contact dermatitis, scalp rash, skin cyst and skin discoloration among the conditions Dr. Bortz treats.
Mohs-micrographic surgery physicians near Dr. Bortz
Counts of mohs-micrographic surgery 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. Jeffrey Thomas Bortz billed Medicare for 1,404 services in 2024
CMS data shows 1,404 Medicare services from Dr. Bortz across 24 procedure codes in 2024, for 374 Medicare patients. Medicare paid $513,116 for them. Every service was in an office.
Dr. Bortz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1,0702024: 1,20413%
- Office and hospital visits
- 2023: 1282024: 20056%
Dr. Bortz compared with the California median for mohs-micrographic surgery physicians, 2024
- Dr. Bortz
- California median
- Medicare services
- 1,404vs 2,64547% below
- Medicare patients
- 374vs 52829% below
- Part D claims
- 90vs 22560% below
Medians across 153 mohs-micrographic surgery physicians in California with Dmand AI profiles that report each measure.
Dr. Bortz's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bortz and other mohs-micrographic surgery physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeffrey Thomas Bortz treated 374 Medicare patients in 2024, average age 78
CMS counts 374 Medicare patients who saw Dr. Bortz in 2024. The largest group is 75 to 84, with 175 patients. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bortz's median patient age at 62, with 54% women.
Dr. Bortz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Bortz's Medicare patients by sex, 2024
- Women15241%
- Men22259%
Chronic conditions among Dr. Bortz's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis38%
- Ischemic heart disease25%
- Atrial fibrillation24%
- Cancer21%
- Chronic kidney disease20%
- Osteoporosis19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bortz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women54%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeffrey Thomas Bortz wrote 137 Medicare Part D claims in 2024
In 2024, Dr. Bortz wrote 137 Medicare Part D claims for 95 patients. 99% of them were for generic drugs. CMS names the drug for 90 of them, across 3 drugs with 11 or more claims each, at $612 in total drug cost. In 2023, CMS named 108 claims across 4 drugs.
Dr. Bortz's Part D claims by kind of drug, 2024
- Generic136 claims99%
- Brand-name and other1 claims1%
Dr. Bortz'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.
Drug classes CMS tracks in Dr. Bortz's Part D claims, 2024
- Antibiotics69%94 of 137 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1082024: 9017%
Drugs named by CMS: 3 in 2024, 4 in 2023.
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
Dr. Jeffrey Thomas Bortz scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Bortz for performance year 2024, reported as part of a group. Dr. Bortz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 173 procedures of melanoma (skin cancer) excision by Dr. Bortz, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Bortz's MIPS scores, performance year 2024
- 99of 100Final score
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Bortz ranks in Medicare procedure volume
- Removal of skin cancer
- 71st percentile663 procedures
- Melanoma (skin cancer) excision
- 97th percentile173 procedures
- Removal of skin lesions
- 73rd percentile66 procedures
- Skin biopsy
- 70th percentile60 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jeffrey Thomas Bortz received $4,916 in industry payments from 2016 to 2025
CMS Open Payments shows 161 general payments to Dr. Bortz from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 66% of the total. Acell, Inc. paid the most, $1,329.
General payments to Dr. Bortz by program year, 2016 to 2025
General payments to Dr. Bortz by kind, 2016 to 2025
- Food and beverage$3,23366%
- Education$1,33427%
- Honoraria$3507%
Companies that paid Dr. Bortz the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jeffrey Thomas Bortz graduated from Carver College of Medicine
Dr. Bortz graduated from Carver College of Medicine in 1989.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Dr. Jeffrey Thomas Bortz accepts plans from 15 insurance carriers
Dr. Bortz is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Humana
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +7 more carriersWith a free account
Plan types Dr. Bortz accepts, by number of carriers
- Medicare9
- PPO9
- HMO7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Jeffrey Thomas Bortz'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Jeffrey Thomas Bortz
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. Jeffrey Thomas Bortz's NPI number?
Dr. Jeffrey Thomas Bortz's NPI number is 1710191382. It was assigned on May 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey Thomas Bortz?
Dr. Jeffrey Thomas Bortz is a mohs-micrographic surgery physician in Walnut Creek, California. The primary specialty in the NPI Registry is MOHS-Micrographic Surgery Physician (taxonomy code 207ND0101X).
Where does Dr. Jeffrey Thomas Bortz practice?
Dr. Bortz practices at 355 Lennon Ln, Walnut Creek, CA 94598. Dr. Bortz's primary practice is Callista Surgery Center, LLC in Walnut Creek, California. Dmand AI also links Dr. Bortz to 1 group practice or clinic.
What is Dr. Jeffrey Thomas Bortz's office phone number?
The practice phone on file for Dr. Bortz is (925) 357-9050.
What is Dr. Jeffrey Thomas Bortz's medical license number?
Dr. Bortz holds California license A487440.
What medical group is Dr. Jeffrey Thomas Bortz part of?
Dr. Bortz is linked to Golden State Dermatology.
Does Dr. Jeffrey Thomas Bortz accept Medicare?
Yes. CMS data shows Dr. Bortz billed Medicare for 1,404 services in 2024, and Dr. Bortz accepts Medicare assignment.
What is Dr. Jeffrey Thomas Bortz's MIPS score?
Dr. Bortz's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jeffrey Thomas Bortz see?
CMS counts 374 Medicare patients who saw Dr. Bortz in 2024, with an average age of 78.
Is Dr. Jeffrey Thomas Bortz board certified?
Yes. Dr. Bortz is board certified in dermatology by the American Board of Dermatology.
Show 6 more questionsShow fewer questions
What services does Dr. Jeffrey Thomas Bortz bill to Medicare?
In 2024, Dr. Bortz's most billed Medicare services were surgery: skin and soft tissue (17311), surgery: skin and soft tissue (17312) and office visit, established patient (99213).
Where did Dr. Jeffrey Thomas Bortz go to medical school?
Dr. Bortz graduated from Carver College of Medicine in 1989.
What drugs does Dr. Jeffrey Thomas Bortz prescribe most?
In 2024 Medicare Part D data, Dr. Bortz's most prescribed drugs by claims were Cephalexin, Doxycycline Hyclate and Mupirocin.
Has Dr. Jeffrey Thomas Bortz received payments from drug or device companies?
CMS Open Payments shows $4,916 in general payments to Dr. Bortz from 22 companies from 2016 to 2025. The largest total came from Acell, Inc.
How long has Dr. Jeffrey Thomas Bortz been practicing?
Dr. Bortz graduated from medical school in 1989, 37 years ago.
What insurance does Dr. Jeffrey Thomas Bortz accept?
Dr. Bortz is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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