KATELYN ST. PIERRE ISAAC AG-ACNP
NPI 1083007405
Nurse Practitioner in Augusta, ME

Q: What is Katelyn Isaac's NPI number?

The NPI number for Katelyn Isaac is 1083007405. It was assigned to this individual provider in the NPPES registry on March 10, 2015.

Q: What is Katelyn Isaac's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Katelyn Isaac was last updated on April 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 10, 2015PECOS EnrolledAccepts Medicare Assignment

98.06/100

CMS Quality Rating

35 MEDICAL CENTER PKWY, AUGUSTA, ME 04330(207) 621-4116(207) 621-4689 Get Directions Write a Review

NPPES record last updated: April 20, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 20, 2026, Feb 19, 2025 (2 updates tracked since 2025).

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About Katelyn St. Pierre Isaac Ag-acnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATELYN ST. PIERRE ISAAC AG-ACNP (NPI 1083007405) is an individual nurse practitioner in Augusta, Maine, licensed in Maine (CNP151017) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS, is affiliated with Maine General Medical Center, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1083007405

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameKATELYN ST. PIERRE ISAACCredential: AG-ACNP

Location Address35 MEDICAL CENTER PKWYAugusta, ME 04330-8160

Mailing AddressPo Box 911Brattleboro, VT 05302-0911 · (207) 303-3300 · Fax (207) 250-2140

Phone(207) 621-4116

Fax(207) 621-4689

Sole ProprietorNo

Medical School CMSOtherGraduated 2014

Enumeration DateMarch 10, 2015

Last NPPES UpdateApril 20, 20262 updates tracked since enumeration

NPPES CertifiedApril 20, 2026

✔ NPI 1083007405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in ME · CNP151017

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

35 MEDICAL CENTER PKWY, Augusta, ME 04330

Open in Google Maps ↗

Secondary Practice Locations 5

Location 1155 Borthwick Ave Ste CPortsmouth, NH 03801-7156 · Phone (603) 828-0100 · Fax (603) 828-0111

Location 215 Rock Row Ste 110Westbrook, ME 04092-4877 · Phone (207) 303-3300

Location 3105 Topsham Fair Mall Rd Unit 1Topsham, ME 04086-1773 · Phone (207) 303-3300 · Fax (207) 250-2137

Location 411 Rock Row Ste 120Westbrook, ME 04092-4877 · Phone (207) 303-3300 · Fax (207) 250-2139

Location 52 Independence DrKennebunk, ME 04043-6078 · Phone (207) 303-3300 · Fax (207) 250-2144

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katelyn St. Pierre Isaac Ag-acnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3476861816

PECOS Enrollment IDI20151005000378, I20250317000963

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

58 services36 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

49 services38 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

23 services20 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

15 services15 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

15 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Maine General Medical Center

Acute Care Hospitals · Augusta, ME

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number200039

Location35 Medical Center ParkwayAugusta, ME 04330 · Kennebec County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04330 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$82.58 typical visit price

range $53.26 – $162.77

Typical copayment $20.64 (range $13.31 – $40.69)

Most-billed visit code 99203

Established Patient

$94.60 typical visit price

range $16.90 – $132.79

Typical copayment $23.65 (range $4.22 – $33.19)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

98.06/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

86.13

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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