Doctor profile · Federal record

Dr. Adrienne Lenhart

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Simi Valley, CA

  • NPI 1740608371
  • Accepts Medicare
  • MIPS 84.9 / 100 · 2023
  • 12 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2655 1St St Ste 360
Simi Valley, CA 930651581
(805) 583-7640
Additional location
2799 W Grand Blvd
Detroit, MI 482022608
(313) 916-2600
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
July 26, 2021
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
California #A154694 · Michigan #4301105405

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1740608371. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
756
Distinct HCPCS
10
Medicare allowed
$104,629
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 209 120 $141
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 154 52 $85
99204 New patient office or other outpatient visit, 45-59 minutes 96 96 $183
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 57 57 $266
45380 Biopsy of large bowel using a flexible endoscope 54 54 $98
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 51 50 $105
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 51 22 $127
99215 Established patient office or other outpatient visit, 40-54 minutes 38 37 $197
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 31 30 $88
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 15 15 $139

In context: peer comparison

Among 2 peers in this city , average services per provider: 113. This provider delivers 6.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$45
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 2 $45.47

By nature of payment

Food and Beverage
$45

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
553
Patients
285
Total drug cost
$150,089
Drug Type Claims Patients Total cost
Omeprazole Generic 155 84 $3,590
Famotidine Generic 84 44 $1,366
Pantoprazole Sodium Generic 78 34 $2,644
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 51 49 $3,958
Linzess (Linaclotide) Brand 44 20 $44,885
Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 23 22 $397
Dicyclomine Hcl Generic 20 17 $536
Creon (Lipase/Protease/Amylase) Brand 18 0 $68,107
Cholestyramine (Cholestyramine (With Sugar)) Brand 16 15 $2,670
Mirtazapine Generic 15 0 $764

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Adrienne Lenhart's medical specialty?
Dr. Adrienne Lenhart practices Gastroenterology Physician in Simi Valley, CA.
Where does Dr. Adrienne Lenhart practice?
Dr. Adrienne Lenhart practices at 2655 1St St Ste 360, Simi Valley, CA 930651581. Office phone: 8055837640.
What is Dr. Adrienne Lenhart's NPI?
Dr. Adrienne Lenhart's National Provider Identifier (NPI) is 1740608371, issued by NPPES.
Does Dr. Adrienne Lenhart accept Medicare assignment?
Yes. Dr. Adrienne Lenhart accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Adrienne Lenhart commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.