Doctor profile · Federal record

Dr. Clarissa Michalak, ACNP-Ag

Acute Care Nurse Practitioner (CMS: Nurse Practitioner) · Gerontology Nurse Practitioner · Biddeford, ME

  • NPI 1346618394
  • Accepts Medicare
  • MIPS 93.1 / 100 · 2023
  • 14 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1 Medical Center Dr
Biddeford, ME 040059422
(207) 283-7000
Additional location
31 Shady Run Ln
Cumberland, ME 040213818
(207) 409-3623
Mailing address
31 Shady Run Ln
Cumberland, ME 040213818

Credentials & registration

NPPES · NUCC
NPI registered
September 2015 — 11 yrs on file
Profile last updated
March 29, 2024
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363LA2100X — NUCC code
State licenses (2)
New York #430958 · Maine #CNP201245

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346618394. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
20
Distinct HCPCS
1
Medicare allowed
$2,182
HCPCS Description Services Patients Avg allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 20 20 $109

In context: peer comparison

Among 5 peers in Biddeford Acute Care Nurse Practitioner, average services per provider: 42. This provider delivers 0.5× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Clarissa Michalak's medical specialty?
Dr. Clarissa Michalak practices Acute Care Nurse Practitioner in Biddeford, ME.
Where does Dr. Clarissa Michalak practice?
Dr. Clarissa Michalak practices at 1 Medical Center Dr, Biddeford, ME 040059422. Office phone: 2072837000.
What is Dr. Clarissa Michalak's NPI?
Dr. Clarissa Michalak's National Provider Identifier (NPI) is 1346618394, issued by NPPES.
Does Dr. Clarissa Michalak accept Medicare assignment?
Yes. Dr. Clarissa Michalak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Clarissa Michalak commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.