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SAGUARO DERMATOLOGY ASSOCIATES LLC
NPI 1114485646
Dermatology in Phoenix, AZ

Active since March 04, 2019CLIA Certified · 4 labs
3400 E MCDOWELL RD FL 2, PHOENIX, AZ 85008(480) 681-3300(480) 681-3301 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 10, 2026, Mar 25, 2021, Mar 10, 2021 and 2 more (5 updates tracked since 2019).

About Saguaro Dermatology Associates Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SAGUARO DERMATOLOGY ASSOCIATES LLC (NPI 1114485646) is a healthcare organization registered as a dermatology in Phoenix, Arizona and active in the NPI registry since March 2019. The organization holds 4 active CLIA laboratory certificates, maintains 3 additional practice locations, and lists Dathan Hamann, Owner, as its authorized official.

NPPES Registry Identity

NPI1114485646
Entity TypeOrganization
Primary Taxonomy207N00000X
Legal Business NameSAGUARO DERMATOLOGY ASSOCIATES LLC
Location Address3400 E MCDOWELL RD FL 2Phoenix, AZ 85008-3884
Mailing AddressPo Box 61025Phoenix, AZ 85082-1025 · (480) 681-3000 · Fax (480) 681-3301
Phone(480) 681-3300
Fax(480) 681-3301
Organization SubpartNo
Authorized OfficialDathan HamannOwner · (480) 681-3300
Enumeration DateMarch 4, 2019
Last NPPES UpdateAugust 10, 20265 updates tracked since enumeration
NPPES CertifiedAugust 10, 2026
✔ NPI 1114485646 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
3400 E MCDOWELL RD FL 2, Phoenix, AZ 85008
Open in Google Maps ↗

Secondary Practice Locations 3

Location 14425 E Agave Rd Ste 148Phoenix, AZ 85044-0623 · Phone (480) 771-0279 · Fax (480) 704-7549
Location 22150 S Dobson Rd Ste 1Mesa, AZ 85202-6487 · Phone (480) 820-9774 · Fax (480) 897-0820
Location 34530 E Shea Blvd Ste 101Phoenix, AZ 85028-6066 · Phone (602) 867-7546 · Fax (608) 971-0065

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health, Cigna HealthCare of Arizona, Inc.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Saguaro Dermatology Associates Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to Saguaro Dermatology Associates LLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Dermatology8
Micrographic Dermatologic Surgery (MDS)1
Nurse Practitioner1

Clinicians, nearest first (10)

Carsten Hamann, MD
Dermatology
NPI 1538546957
3400 E MCDOWELL RD
Phoenix, AZ 85008
(480) 681-3300
✔ PECOS✔ Accepts MedicareSame address
Dathan Hamann, M.D.
Dermatology
NPI 1760801070
3400 E MCDOWELL RD
Phoenix, AZ 85008
(480) 681-3300
✔ PECOS✔ Accepts MedicareSame address
Martin Nunez, MD
Dermatology
NPI 1306342811
7337 E 2ND ST
Scottsdale, AZ 85251
(480) 712-8741
✔ PECOS✔ Accepts Medicare5.2 mi
Katherine Mcclure, DO
Dermatology
NPI 1932698727
4530 E SHEA BLVD STE 101
Phoenix, AZ 85028
(602) 867-7546
✔ PECOS✔ Accepts Medicare8.2 mi
Adriana Holy
Dermatology
NPI 1750575643
4530 E SHEA BLVD 101
Phoenix, AZ 85028
(602) 867-7546
✔ PECOS✔ Accepts Medicare8.2 mi
Millard Thaler, MD
Dermatology
NPI 1336255793
2150 S DOBSON ROAD STE #1
Mesa, AZ 85202
(480) 820-2974
✔ PECOS✔ Accepts Medicare9.7 mi
Michael Mcbride, DO
Dermatology
NPI 1508325697
4425 E AGAVE RD STE 148
Phoenix, AZ 85044
(480) 704-7546
✔ PECOS✔ Accepts Medicare10 mi
Megan Mcbride, DNP
Nurse Practitioner
NPI 1437712031
20401 N 73RD ST STE 230
Scottsdale, AZ 85255
(480) 556-0446
✔ PECOS✔ Accepts Medicare15 mi
Jenna Wald, MD
Micrographic Dermatologic Surgery (MDS)
NPI 1003159872
4540 E BASELINE RD STE 109
Mesa, AZ 85206
(480) 982-3337
✔ PECOS✔ Accepts Medicare17 mi
May Elgash, MD
Dermatology
NPI 1326602558
833 CHESTNUT ST STE 740
Philadelphia, PA 19107
(215) 955-6680
✔ PECOS✔ Accepts Medicare2,079 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA 4

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 03D2162146

Saguaro Dermatology Associates, LLC · Phoenix, AZ
Active · expires May 13, 2028
CLIA Number03D2162146
Laboratory TypePhysician Office
Certificate Effective DateMay 14, 2026
Certificate Expiration DateMay 13, 2028
Laboratory DirectorDathan J. Hamann
Laboratory Phone(480) 681-3300
Laboratory LocationSaguaro Dermatology Associates, LLC3400 E Mcdowell Road, Phoenix, AZ 85008
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Compliance 03D0662724

Saguaro Dermatology · Mesa, AZ
Active · expires Jan 2, 2027
CLIA Number03D0662724
Laboratory TypePhysician Office
Certificate Effective DateJanuary 3, 2025
Certificate Expiration DateJanuary 2, 2027
Laboratory DirectorDathan Hamann
Laboratory Phone(480) 820-9774
Laboratory LocationSaguaro Dermatology2150 S Dobson Rd Ste 1, Mesa, AZ 85202
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Waiver 03D2029492

Saguaro Dermatology Paradise Valley · Phoenix, AZ
Active · expires Sep 7, 2027
CLIA Number03D2029492
Laboratory TypePhysician Office
Certificate Effective DateSeptember 8, 2025
Certificate Expiration DateSeptember 7, 2027
Laboratory DirectorDathan Hamann
Laboratory Phone(480) 681-3300
Laboratory LocationSaguaro Dermatology Paradise Valley4530 E Shea Blvd, Ste 101, Phoenix, AZ 85028
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Compliance 03D2340137

Saguaro Dermatology · Mesa, AZ
Active · expires Mar 11, 2028
CLIA Number03D2340137
Laboratory TypePhysician Office
Certificate Effective DateMarch 12, 2026
Certificate Expiration DateMarch 11, 2028
Laboratory DirectorCarsten Hamann
Laboratory Phone(480) 820-9774
Laboratory LocationSaguaro Dermatology2150 S Dobson Rd Ste 3, Mesa, AZ 85202
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Saguaro Dermatology Associates LLC's NPI number?

The NPI number for Saguaro Dermatology Associates LLC is 1114485646. It was assigned to this organization in the NPPES registry on March 4, 2019.

Where is Saguaro Dermatology Associates LLC located?

Saguaro Dermatology Associates LLC is located at 3400 E Mcdowell Rd Fl 2, Phoenix, AZ 85008. The listed phone number is (480) 681-3300.

What is Saguaro Dermatology Associates LLC's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Saguaro Dermatology Associates LLC enrolled in Medicare?

Yes. Saguaro Dermatology Associates LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Saguaro Dermatology Associates LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 3 Medicare specialties reassign their Medicare billing to Saguaro Dermatology Associates LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Dermatology (8), Micrographic Dermatologic Surgery (MDS) (1) and Nurse Practitioner (1). Of these, 2 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Saguaro Dermatology Associates LLC hold CLIA laboratory certificates?

Yes. 4 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Saguaro Dermatology Associates LLC accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health and Cigna HealthCare of Arizona, Inc list Saguaro Dermatology Associates LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Saguaro Dermatology Associates LLC was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.