Dr. John Timothy Katzen, MD
- Part D claims, 2024
- 42
- Industry payments
- $243
- Affiliated sites
- 1
- Insurance carriers
- 4
- State licenses
- 6
- Practice address
- 1505 Wilson Ter, Glendale, CA 91206
- Practice phone
- Call (310) 205-3555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bhskin Dermatology
Glendale, California
Find Dr. Katzen'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 Timothy Katzen is a plastic surgeon in Glendale, California
Dr. Katzen practices at Bhskin Dermatology in Glendale, California.
Dr. Katzen's NPI, 1922146125, was assigned on February 1, 2007. Dr. Katzen graduated from VCU School of Medicine in 1991. Dr. Katzen holds California license G85745.
- NPI
- 1922146125NPI Registry (opens in a new tab)
- NPI enumeration date
- February 1, 2007
- NPI status
- Active
- Practice phone
- (310) 205-3555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. John Timothy Katzen practices at Bhskin Dermatology in Glendale, California
Dr. Katzen's primary practice is Bhskin Dermatology, at 1505 Wilson Ter, Glendale, CA 91206 in Los Angeles County. The practice phone is (310) 205-3555.
- Bhskin Dermatology1505 Wilson Ter, Glendale, CA 91206 · Los Angeles CountyPhone(310) 205-3555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Timothy Katzen is affiliated with 2 sites of care
Dr. Katzen's primary practice is Bhskin Dermatology in Glendale, California. Dmand AI also links Dr. Katzen to 1 physician office, 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. John Timothy Katzen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Katzen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bhskin Dermatology | 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. John Timothy Katzen is one of 778 plastic surgeons in California
Plastic surgery is Dr. Katzen's primary specialty in the NPI Registry, under taxonomy code 208200000X. Dr. Katzen is board certified in plastic surgery by the American Board of Plastic Surgery. Dmand AI has Dr. Katzen's licenses on file in 6 states: California, Nevada, Maine, New York, Texas and Hawaii.
Specialties and state licenses
- Plastic surgery, CaliforniaPrimary
- Nevada license
- Maine license
- New York license
- Texas license
- Hawaii license
Plastic surgeons near Dr. Katzen
Counts of plastic 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. John Timothy Katzen's patients have a median age of 45
Across all payers, Dmand AI patient panel data puts Dr. Katzen's median patient age at 45, with 64% women.
Dr. Katzen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women64%
- Men36%
Source: Dmand AI Patient Panel Data
Dr. John Timothy Katzen wrote 42 Medicare Part D claims in 2024
In 2024, Dr. Katzen wrote 42 Medicare Part D claims for 11 patients. 95% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $1,116 in total drug cost. In 2018, CMS named 11 claims across 1 drug.
Dr. Katzen's Part D claims by kind of drug, 2024
- Generic40 claims95%
- Brand-name and other2 claims5%
Dr. Katzen's most prescribed drugs by claims, 2020
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, 2018 to 2020
- 2018
- 2020
- Claims for drugs CMS names
- 2018: 112020: 24118%
Drugs named by CMS: 2 in 2020, 1 in 2018.
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
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Dr. John Timothy Katzen received $243 in industry payments from 2021 to 2025
CMS Open Payments shows 8 general payments to Dr. Katzen from 4 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Innovation Technologies Inc paid the most, $98.
General payments to Dr. Katzen by program year, 2021 to 2025
Companies that paid Dr. Katzen the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Timothy Katzen graduated from VCU School of Medicine
Dr. Katzen graduated from VCU School of Medicine in 1991.
- Medical school
- Board certified in plastic surgery
Source: Dmand AI Professional Profile Data
Dr. John Timothy Katzen accepts plans from 4 insurance carriers
Dr. Katzen is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
Plan types Dr. Katzen accepts, by number of carriers
- Medicare4
- PPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. John Timothy Katzen'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) |
| 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. John Timothy Katzen
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 Timothy Katzen's NPI number?
Dr. John Timothy Katzen's NPI number is 1922146125. It was assigned on February 1, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John Timothy Katzen?
Dr. John Timothy Katzen is a plastic surgeon in Glendale, California. The primary specialty in the NPI Registry is Plastic Surgery Physician (taxonomy code 208200000X).
Where does Dr. John Timothy Katzen practice?
Dr. Katzen practices at 1505 Wilson Ter, Glendale, CA 91206. Dr. Katzen's primary practice is Bhskin Dermatology in Glendale, California. Dmand AI also links Dr. Katzen to 1 physician office.
What is Dr. John Timothy Katzen's office phone number?
The practice phone on file for Dr. Katzen is (310) 205-3555.
What is Dr. John Timothy Katzen's medical license number?
Dr. Katzen holds California license G85745, one of the licenses on file in 6 states.
Which states has Dr. John Timothy Katzen been licensed in?
Dmand AI has state licenses on file for Dr. Katzen in California (2000 to 2026), Nevada (2014 to 2025), Maine (2011 to 2023), New York (1999 to 2001), Texas (1997 to 2000) and Hawaii (1991 to 1994).
Is Dr. John Timothy Katzen board certified?
Yes. Dr. Katzen is board certified in plastic surgery by the American Board of Plastic Surgery.
Where did Dr. John Timothy Katzen go to medical school?
Dr. Katzen graduated from VCU School of Medicine in 1991.
What drugs does Dr. John Timothy Katzen prescribe most?
In 2020 Medicare Part D data, Dr. Katzen's most prescribed drugs by claims were Ciprofloxacin HCl and Scopolamine.
Has Dr. John Timothy Katzen received payments from drug or device companies?
CMS Open Payments shows $243 in general payments to Dr. Katzen from 4 companies from 2021 to 2025. The largest total came from Innovation Technologies Inc.
How long has Dr. John Timothy Katzen been practicing?
Dr. Katzen graduated from medical school in 1991, 35 years ago.
What insurance does Dr. John Timothy Katzen accept?
Dr. Katzen is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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