Megan Houlahan, AGNP
Adult Health Nurse Practitioner · Clayton, MO
Megan Houlahan, AGNP is an adult health nurse practitioner with a practice address in Clayton, Missouri, and NPI 1972975183, issued on Oct 27, 2015. Check the license (Missouri 2015038454, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Megan Houlahan
- Credential
- AGNP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 2015038454 MO
Self-reported in NPPES; status is on the state search - Practice location
- 401 Corporate Park Dr, Clayton, MO 63105
- Phone
- (636) 288-4149
- Enumerated
- Oct 27, 2015
- Record last updated
- Jul 10, 2025
- Medicare enrollment
- Enrolled (PECOS I20160209000337); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 794 in Missouri → Look up another NPI →
Also registered at 401 Corporate Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Megan Houlahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2015038454Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
133 Medicare Part D claims for 28 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D.
Most prescribed
- Sulfamethoxazole-Trimethoprim22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 88.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $228.36
2 payments; by number, the most common kind was food and beverage; the largest payer was Legend Biotech USA Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Med Clinical Practice LLCClayton, MO
- Ssm Health Care GroupSaint Louis, MO
- Ssm Medical Group IncLake St Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Megan Houlahan among 794 adult health nurse practitioner records in Missouri
Megan Houlahan, AGNP is one of 794 adult health nurse practitioner records with a practice address in Missouri. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 62% of them.
- NPI issued2015 · 62% of these records are older, 31% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2015 · median 2013 among the 399 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in Missouri
There are 794 adult health nurse practitioner records in Missouri.
All 794 in Missouri → Every provider in Clayton → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Denise Apprill, NP-CSaint Louis, MO 631061700036993
- Pamela Becker Weilitz, RN, APRN, BCSaint Louis, MO 631061750343364
- Martha Brooks, ANPSaint Louis, MO 631061760431498
- Mary Beth Brueggemann, APRN-BCSaint Louis, MO 631061518133446
- Matthew Buhr, ADULT NPSaint Louis, MO 631041447533989
- Donna EdwardsSaint Louis, MO 631061427015916
- Marianne Flesch, ANPSaint Louis, MO 631061558323808
- Dorthy Grohs, RN,APRN,BCSaint Louis, MO 631061902854169
Common questions
What is Megan Houlahan, AGNP's NPI number?
Megan Houlahan, AGNP's National Provider Identifier (NPI) is 1972975183, issued on Oct 27, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Megan Houlahan, AGNP located?
The NPPES record lists a practice address at 401 Corporate Park Dr, Clayton, MO, 63105. Phone: (636) 288-4149. Providers update this record themselves, so call before visiting.
How can I verify Megan Houlahan, AGNP's license?
NPPES lists Missouri license number 2015038454, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Megan Houlahan, AGNP prescribe under Medicare Part D?
In 2024, Megan Houlahan, AGNP had 133 Medicare Part D claims for 28 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.
What is Megan Houlahan, AGNP's MIPS final score?
The 2023 MIPS final score is 88.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.