Michael Hennigan
NPI 1538699384 · Psychiatric/Mental Health Nurse Practitioner · Clarks Summit, PA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Hennigan is a Psychiatric/Mental Health Nurse Practitioner provider in Clarks Summit, PA (NPI 1538699384).
Provider details
- NPI number
- 1538699384
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- SP017524 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
329 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 210 | $63 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 119 | $40 |
Typical Medicare-allowed amounts for these services range $40–$63 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lorazepam | 77 | 15 |
| Olanzapine | 67 | — |
| Divalproex Sodium | 59 | — |
| Haloperidol | 48 | — |
| Haloperidol Decanoate | 46 | — |
| Clozapine | 45 | — |
| Lithium Carbonate | 36 | — |
| Paliperidone Palmitatebrand: Invega Sustenna | 35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-14
- Last updated
- 2022-07-21
Frequently asked questions
- What is Michael Hennigan's NPI number?
- Michael Hennigan's National Provider Identifier (NPI) is 1538699384, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Hennigan's specialty?
- Michael Hennigan is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michael Hennigan located?
- Michael Hennigan's practice location on file with NPPES is 1451 Hillside Dr, Clarks Summit, PA 18411-9504.
- What is Michael Hennigan's phone number?
- The practice phone number listed in the NPPES registry for Michael Hennigan is (570) 586-2011.
- Does Michael Hennigan accept Medicare?
- Michael Hennigan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Hennigan's NPI active?
- Yes — Michael Hennigan's NPI (1538699384) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.