Doctor profile · Federal record

Dr. Mary Hahn, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Phoenix, AZ

  • NPI 1104891670
  • Accepts Medicare
  • MIPS 92.9 / 100 · 2023
  • 28 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
350 W Thomas RD
Phoenix, AZ 850134409
(602) 263-9007
Additional location
424 S 56Th St Ste 120
Phoenix, AZ 850342177
(602) 685-5211
fax (602) 685-5325
Mailing address
Po Box 42210
Phoenix, AZ 850802210

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
August 4, 2020
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Arizona #25963
Medicaid
AZ #451849

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104891670. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,343
Distinct HCPCS
10
Medicare allowed
$123,338
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 1,021 432 $36
88341 Special stained specimen slides to examine tissue, each additional procedure 457 120 $27
88173 Evaluation of fine needle aspirate with interpretation and report 215 97 $67
88342 Special stained specimen slides to examine tissue, initial procedure 198 151 $34
88112 Cell examination of specimen, selective cellular enhancement technique 183 122 $27
88312 Special stained specimen slides to identify organisms including interpretation and report 178 90 $26
88307 Pathology examination of tissue using a microscope, moderately high complexity 132 88 $79
88172 Evaluation of fine needle aspirate 109 41 $34
88304 Pathology examination of tissue using a microscope, moderately low complexity 82 74 $11
88311 Preparation of tissue for examination by removing any calcium present 72 60 $12

In context: peer comparison

Among 29 peers in Phoenix Anatomic Pathology & Clinical Pathology Physician, average services per provider: 242. This provider delivers 14× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$20
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Shionogi INC 1 $20.01

By nature of payment

Food and Beverage
$20

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Hahn's medical specialty?
Dr. Mary Hahn practices Anatomic Pathology & Clinical Pathology Physician in Phoenix, AZ.
Where does Dr. Mary Hahn practice?
Dr. Mary Hahn practices at 350 W Thomas RD, Phoenix, AZ 850134409. Office phone: 6022639007.
What is Dr. Mary Hahn's NPI?
Dr. Mary Hahn's National Provider Identifier (NPI) is 1104891670, issued by NPPES.
Does Dr. Mary Hahn accept Medicare assignment?
Yes. Dr. Mary Hahn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Hahn commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Evaluation of fine needle aspirate with interpretation and report (HCPCS 88173). Source: CMS Medicare Physician & Other Practitioners file.