Doctor profile · Federal record

Dr. Megan Houlahan, AGNP

Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Gerontology Nurse Practitioner · Clayton, MO

  • NPI 1972975183
  • Accepts Medicare
  • MIPS 78.9 / 100 · 2023
  • 11 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 7 locations .

NPPES Updated May 11, 2026
Primary practice
401 Corporate Park Dr
Clayton, MO 631054201
(636) 288-4149
Additional location
10 Hospital Dr Fl 3
Saint Peters, MO 633761659
Additional location
11160 Village North Dr
Jennings, MO 631366159
Show 4 more locations
Additional location
3655 Vista Ave
Saint Louis, MO 631102539
(314) 268-7700
Additional location
4455 Duncan Ave
Saint Louis, MO 631101111
Additional location
5400 Executive Centre Pkwy
Saint Peters, MO 633762594
Additional location
998 Woods Mill RD
Ballwin, MO 630115101
Mailing address
2025 Zumbehl Road, Pmb 49
St. Charles, MO 633032723

Credentials & registration

NPPES · NUCC
NPI registered
October 2015 — 11 yrs on file
Profile last updated
July 10, 2025
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
363LA2200X — NUCC code
State license (1)
Missouri #2015038454

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972975183. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
30
Distinct HCPCS
1
Medicare allowed
$2,001
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 30 11 $67

In context: peer comparison

Among 1 peers in Clayton Adult Health Nurse Practitioner, average services per provider: 30. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$228
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Legend Biotech USA INC. 1 $125.87
Sanofi-Aventis U.S. LLC 1 $102.49

By nature of payment

Food and Beverage
$228

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
14
Patients
0
Total drug cost
$141
Drug Type Claims Patients Total cost
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 14 0 $141

Frequently asked questions

Auto-generated from federal data
What is Dr. Megan Houlahan's medical specialty?
Dr. Megan Houlahan practices Adult Health Nurse Practitioner in Clayton, MO.
Where does Dr. Megan Houlahan practice?
Dr. Megan Houlahan practices at 401 Corporate Park Dr, Clayton, MO 631054201. Office phone: 6362884149.
What is Dr. Megan Houlahan's NPI?
Dr. Megan Houlahan's National Provider Identifier (NPI) is 1972975183, issued by NPPES.
Does Dr. Megan Houlahan accept Medicare assignment?
Yes. Dr. Megan Houlahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Megan Houlahan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.