Doctor profile · Federal record

Dr. Alexandra Theisen, M.D.

Physical Medicine & Rehabilitation Physician (CMS: Physical Medicine and Rehabilitation) · Physical Medicine & Rehabilitation Physician · Chelsea, MI

  • NPI 1124169040
  • Accepts Medicare
  • 30 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
14700 E Old US Highway 12
Chelsea, MI 481181185
(734) 936-7175
Additional location
14650 E Old US 12, Suite 203
Chelsea, MI 48118
(734) 475-3923
fax (734) 475-4071
Mailing address
3621 S State St
Ann Arbor, MI 481081633

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
January 24, 2024
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
208100000X — NUCC code
State licenses (2)
Michigan #4301067486 · Michigan #AT67486
Medicaid
MI #104217061

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1124169040. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
415
Distinct HCPCS
5
Medicare allowed
$52,047
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 288 123 $128
99213 Established patient office or other outpatient visit, 20-29 minutes 67 46 $91
95886 Needle measurement of electrical activity in arm or leg muscles, complete study 24 14 $97
99205 New patient office or other outpatient visit, 60-74 minutes 20 20 $215
99204 New patient office or other outpatient visit, 45-59 minutes 16 16 $160

In context: peer comparison

Among 3 peers in this city , average services per provider: 75. This provider delivers 5.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,179
Patients
153
Total drug cost
$33,945
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 398 68 $8,778
Gabapentin Generic 163 29 $3,257
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 158 20 $4,118
Tramadol Hcl Generic 120 19 $1,029
Cyclobenzaprine Hcl Generic 55 17 $350
Oxycodone Hcl Generic 51 0 $728
Fentanyl Generic 42 0 $2,222
Meloxicam Generic 33 0 $215
Morphine Sulfate Er (Morphine Sulfate) Brand 32 0 $1,020
Oxycontin (Oxycodone Hcl) Brand 29 0 $10,470

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alexandra Theisen's medical specialty?
Dr. Alexandra Theisen practices Physical Medicine & Rehabilitation Physician in Chelsea, MI.
Where does Dr. Alexandra Theisen practice?
Dr. Alexandra Theisen practices at 14700 E Old US Highway 12, Chelsea, MI 481181185. Office phone: 7349367175.
What is Dr. Alexandra Theisen's NPI?
Dr. Alexandra Theisen's National Provider Identifier (NPI) is 1124169040, issued by NPPES.
Does Dr. Alexandra Theisen accept Medicare assignment?
Yes. Dr. Alexandra Theisen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexandra Theisen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Needle measurement of electrical activity in arm or leg muscles, complete study (HCPCS 95886). Source: CMS Medicare Physician & Other Practitioners file.