John Zs Chen, M.D., FAAD
MOHS-Micrographic Surgery Physician · Tucson, AZ
John Zs Chen, M.D., FAAD is a mohs-micrographic surgery physician with a practice address in Tucson, Arizona, and NPI 1942209887, issued on Jul 21, 2005. Check the license (Arizona 32355, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Zs Chen
- Credential
- M.D., FAAD
- Primary taxonomy
- MOHS-Micrographic Surgery Physician 207ND0101X
- License number
- 32355 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1595 E River RD, Tucson, AZ 85718
- Phone
- (520) 293-5757
- Enumerated
- Jul 21, 2005
- Record last updated
- Feb 15, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (520) 293-7358
- Medicaid ID
- 858037 AZ
- Medicare enrollment
- Enrolled (PECOS I20040628001082); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest mohs-micrographic surgery physician records → All 39 in Arizona → Look up another NPI →
Also registered at 1595 E River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lyle Cartwright, M.D., FAADDermatology Physician1750380762
- Elka Eisen, M.D., FAADDermatology Physician1265431274
- Anya Kaczmarek, PA-CPhysician Assistant1578751053
- Alan Levin, MDDermatology Physician1891722278
- Alpa MerchantDentist1720097595
- Duane Mortenson, P.A.Physician Assistant1972719102
Verify John Zs Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 32355Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average mohs-micrographic surgery physician in 2024
302 Medicare Part D claims for 200 beneficiaries, against an average of 570 among the 1,396 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 19 claims were for opioids.
Most prescribed
- Cephalexin131 claims
- Gentamicin Sulfate65 claims
- Mupirocin43 claims
- Acetaminophen-Codeine18 claims
- Doxycycline Hyclate18 claims
- Ciprofloxacin Hcl15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 71.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $268.28
3 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,074 providers of this specialty with any payment received $4,075.23 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Forefront Dermatology SCTucson, AZ
- Sheftel And Associates Dermatology LLPTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Zs Chen among 39 mohs-micrographic surgery physician records in Arizona
John Zs Chen, M.D., FAAD is one of 39 mohs-micrographic surgery physician records with a practice address in Arizona. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 95% of these records are
- In the CMS Doctors and Clinicians fileYes · 90% of these records are
- Graduated1992 · median 2006 among the 35 with a school on file
- Record last updated2017 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0101X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
MOHS-Micrographic Surgery Physician providers in Arizona
There are 39 mohs-micrographic surgery physician records in Arizona.
All 39 in Arizona → Every provider in Tucson → MOHS-Micrographic Surgery Physician nationwide →
The 8 mohs-micrographic surgery physician records with the nearest ZIP codes
- Tracey Newlove, M.D.Tucson, AZ 857101033386669
- Anir Dhir, M.D.Tucson, AZ 857041912900200
- Michael Huether, M.D.Tucson, AZ 857411386647865
- Christopher Weyer, D.O.Sierra Vista, AZ 856351851515381
- Carin Cain, MDFlagstaff, AZ 860011972517530
- Edward Kauffman, MDFlagstaff, AZ 860011790799450
- Kevin Svancara, D.O.Goodyear, AZ 853951083052872
- Vernon Mackey, D.O.Peoria, AZ 853811821046772
Common questions
What is John Zs Chen, M.D., FAAD's NPI number?
John Zs Chen, M.D., FAAD's National Provider Identifier (NPI) is 1942209887, issued on Jul 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Zs Chen, M.D., FAAD located?
The NPPES record lists a practice address at 1595 E River RD, Tucson, AZ, 85718. Phone: (520) 293-5757. Providers update this record themselves, so call before visiting.
How can I verify John Zs Chen, M.D., FAAD's license?
NPPES lists Arizona license number 32355, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Zs Chen, M.D., FAAD prescribe under Medicare Part D?
In 2024, John Zs Chen, M.D., FAAD had 302 Medicare Part D claims for 200 beneficiaries; the average among mohs-micrographic surgery physician prescribers was 570. Part D covers Medicare prescriptions only.
What is John Zs Chen, M.D., FAAD's MIPS final score?
The 2023 MIPS final score is 71.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.