NPPES file of Aug 9, 2026

Loren Alphons Zech, MD, PHD

Dermatology Physician · Tucson, AZ

Loren Alphons Zech, MD, PHD is a dermatology physician with a practice address in Tucson, Arizona, and NPI 1619293891, issued on Apr 13, 2010. Check the license (Arizona 48969, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619293891
Name
Loren Alphons Zech
Credential
MD, PHD
Primary taxonomy
Dermatology Physician 207N00000X
License numbers
48969 AZ
MD2018-0585 NM
Self-reported in NPPES; status is on the state search
Practice location
1595 E River RD Ste 201, Tucson, AZ 85718
Phone
(520) 293-5757
Enumerated
Apr 13, 2010
Record last updated
May 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(520) 293-7358
Medicaid ID
914132 AZ
Medicare enrollment
Enrolled (PECOS I20140918001913); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1595 E River RD Ste 201

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Enz, MDDermatology Physician1558312991
  2. Noelle EskandariPhysician Assistant1154750941
  3. Kasey Hollandsworth, PA-CPhysician Assistant1356894554
  4. Natalie Radloff, PA-CPhysician Assistant1518512409
  5. Sara Royse, PAPhysician Assistant1013463918
  6. Sydney Wentz, FNPFamily Nurse Practitioner1497425250

Verify Loren Alphons Zech in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 48969
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.1 times the Medicare Part D claims of the average dermatology physician in 2024

1,679 Medicare Part D claims for 676 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Loren Zech1,679
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide343 claims
  2. Ketoconazole203 claims
  3. Clobetasol Propionate136 claims
  4. Doxycycline Hyclate118 claims
  5. Dupixent Pen104 claims
  6. Clotrimazole-Betamethasone94 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.

  1. Qualityout of 100 · 30% of the final score73.9
  2. Costout of 100 · 30%71.0
  3. Promoting interoperabilityout of 100 · 25%83.0
  4. Improvement activities20 of 40 points · 15%50.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,486.08

68 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Loren Zech$1,486.08
  2. Specialty average$8,544.61

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

  1. Forefront Dermatology SCTucson, AZ
  2. 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).

Loren Alphons Zech among 350 dermatology physician records in Arizona

Loren Alphons Zech, MD, PHD is one of 350 dermatology physician records with a practice address in Arizona. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 60% of them.

  • NPI issued2010 · 60% of these records are older, 37% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2010 · median 2008 among the 241 with a school on file
  • Record last updated2021 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Arizona

There are 350 dermatology physician records in Arizona.

The 8 dermatology physician records with the nearest ZIP codes

  1. Fiona Behr, M.D.Tucson, AZ 857181194727008
  2. Lyle Cartwright, M.D., FAADTucson, AZ 857181750380762
  3. Julie Dixon, MDTucson, AZ 857181699794990
  4. Elka Eisen, M.D., FAADTucson, AZ 857181265431274
  5. Sarah Enz, MDTucson, AZ 857181558312991
  6. Mohammad Fazel, MD, PHARM.D.Tucson, AZ 857181437447745
  7. Robyn Glaesser, M.D.Tucson, AZ 857181831191741
  8. Mahdieh Jedlowski, MDTucson, AZ 857181679902449

Common questions

What is Loren Alphons Zech, MD, PHD's NPI number?

Loren Alphons Zech, MD, PHD's National Provider Identifier (NPI) is 1619293891, issued on Apr 13, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Loren Alphons Zech, MD, PHD located?

The NPPES record lists a practice address at 1595 E River RD Ste 201, Tucson, AZ, 85718. Phone: (520) 293-5757. Providers update this record themselves, so call before visiting.

How can I verify Loren Alphons Zech, MD, PHD's license?

NPPES lists Arizona license number 48969, 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 Loren Alphons Zech, MD, PHD prescribe under Medicare Part D?

In 2024, Loren Alphons Zech, MD, PHD had 1,679 Medicare Part D claims for 676 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Loren Alphons Zech, MD, PHD'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.