Doctor profile · Federal record

Dr. Margaret Mahler, OTR

Occupational Therapist (CMS: Occupational Therapist in Private Practice) · Greenfield, WI

  • NPI 1760885966
  • Accepts Medicare
  • 13 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
9200 W Layton Ave
Greenfield, WI 532283348
(414) 425-5600
Additional location
7500 W North Ave
Wauwatosa, WI 532131717
(414) 258-6170
Mailing address
4634 N Cramer St
Milwaukee, WI 532111203

Credentials & registration

NPPES · NUCC
NPI registered
October 2014 — 12 yrs on file
Profile last updated
March 4, 2021
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
225X00000X — NUCC code
State license (1)
Wisconsin #5464-26

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1760885966. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,607
Distinct HCPCS
4
Medicare allowed
$41,144
HCPCS Description Services Patients Avg allowed
97530 Therapy procedure using functional activities 473 19 $29
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 447 18 $22
97535 Training for self-care or home management, each 15 minutes 438 16 $25
97112 Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes 249 12 $26

In context: peer comparison

Among 6 peers in Greenfield Occupational Therapist, average services per provider: 208. This provider delivers 7.7× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Mahler's medical specialty?
Dr. Margaret Mahler practices Occupational Therapist in Greenfield, WI.
Where does Dr. Margaret Mahler practice?
Dr. Margaret Mahler practices at 9200 W Layton Ave, Greenfield, WI 532283348. Office phone: 4144255600.
What is Dr. Margaret Mahler's NPI?
Dr. Margaret Mahler's National Provider Identifier (NPI) is 1760885966, issued by NPPES.
Does Dr. Margaret Mahler accept Medicare assignment?
Yes. Dr. Margaret Mahler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Mahler commonly perform?
Top Medicare-reported procedures in 2023: Therapy procedure using functional activities (HCPCS 97530); Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility (HCPCS 97110); Training for self-care or home management (HCPCS 97535). Source: CMS Medicare Physician & Other Practitioners file.