1. Home
  2. Directory
  3. Maine
  4. Waterville
  5. Nurse Practitioner
  6. NPI Profile

MARTHA BALDWIN
NPI 1891280855
Nurse Practitioner - Psychiatric/Mental Health in Waterville, ME

Active since June 22, 2018PECOS EnrolledAccepts Medicare Assignment
40 WATERVILLE COMMONS DR # 1017, WATERVILLE, ME 04901(207) 573-2479(207) 544-5168 Get Directions Write a Review

NPPES record last updated: January 14, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 14, 2026, Nov 5, 2025, Jun 22, 2018 (3 updates tracked since 2018).

About Martha Baldwin NPPES

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

MARTHA BALDWIN (NPI 1891280855) is an individual psychiatric/mental health provider in Waterville, Maine, licensed in Maine (CNP181150) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1891280855
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMARTHA BALDWIN
Location Address40 WATERVILLE COMMONS DR # 1017Waterville, ME 04901-4900
Mailing AddressPo Box 132Greenville Junction, ME 04442-0132 · (207) 280-0547
Phone(207) 573-2479
Fax(207) 544-5168
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateJune 22, 2018
Last NPPES UpdateJanuary 14, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 14, 2026
✔ NPI 1891280855 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in ME · CNP181150
40 WATERVILLE COMMONS DR # 1017, Waterville, ME 04901
Open in Google Maps ↗

Other Names 1

Other Name (5)Kate Baldwin Pmhnp

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Providence 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

Martha Baldwin 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 ID6507115466
PECOS Enrollment IDI20180827000763
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

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.

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.
118 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04901 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.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Martha Baldwin's NPI number?

The NPI number for Martha Baldwin is 1891280855. It was assigned to this individual provider in the NPPES registry on June 22, 2018. The provider is also known as Kate Baldwin Pmhnp.

Where is Martha Baldwin located?

Martha Baldwin practices at 40 Waterville Commons Dr # 1017, Waterville, ME 04901. The listed phone number is (207) 573-2479.

What is Martha Baldwin's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Martha Baldwin enrolled in Medicare?

Yes. Martha Baldwin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Martha Baldwin accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Providence Health Plan list Martha Baldwin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Martha Baldwin was last updated on January 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.