GRACE NJERI NGUMI PMHNP-BC
NPI 1174137434
Nurse Practitioner - Psychiatric/Mental Health in Worcester, MA

Active since September 03, 2020PECOS EnrolledAccepts Medicare Assignment
100 GROVE ST STE 217C, WORCESTER, MA 01605(774) 431-0272 Get Directions Write a Review

NPPES record last updated: June 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 18, 2020, Sep 3, 2020 (2 updates tracked since 2020).

About Grace Njeri Ngumi Pmhnp-bc NPPES

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

GRACE NJERI NGUMI PMHNP-BC (NPI 1174137434) is an individual psychiatric/mental health provider in Worcester, Massachusetts, licensed in Massachusetts (RN261116) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Sturbridge, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1174137434
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameGRACE NJERI NGUMICredential: PMHNP-BC
Location Address100 GROVE ST STE 217CWorcester, MA 01605-2647
Mailing Address258 Main StSturbridge, MA 01566-1540 · (508) 418-6888 · Fax (508) 418-6886
Sole ProprietorYes
Medical School CMSOtherGraduated 2020
Enumeration DateSeptember 3, 2020
Last NPPES UpdateJune 8, 20262 updates tracked since enumeration
NPPES CertifiedJune 8, 2026
✔ NPI 1174137434 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
Licenses✔ Licensed in MA · RN261116✔ Licensed in MA · 2020039628
100 GROVE ST STE 217C, Worcester, MA 01605

Other Names 1

Former Name (1)Grace Ndungu

Secondary Practice Location 1

Location 1258 Main StSturbridge, MA 01566-1540 · Phone (508) 418-6888 · Fax (508) 418-6886

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Grace Njeri Ngumi Pmhnp-bc 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 ID2466865027
PECOS Enrollment IDI20201229001127
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.

Medicare Billing Reassignments

5

Medicare enrollment records show Grace Ngumi reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatric/Mental Health
100 GROVE ST STE 217C
Worcester, MA 01605
  • Reassigned Medicare billing, Massachusetts enrollment
Psychiatry
435 SHREWSBURY ST
Worcester, MA 01604
  • Reassigned Medicare billing, Massachusetts enrollment
  • 31 clinicians in this Medicare group
Psychiatry
258 MAIN ST
Sturbridge, MA 01566
  • Reassigned Medicare billing, Massachusetts enrollment
  • 13 clinicians in this Medicare group
Psychiatric Hospital
1233 MAIN ST
Holyoke, MA 01040
  • Reassigned Medicare billing, Massachusetts enrollment
  • 77 clinicians in this Medicare group
Mental Health
1000 JEFFERSON ST STE 2C
Lynchburg, VA 24504
  • Reassigned Medicare billing, Massachusetts enrollment
  • 250 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.
64 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01605 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

Other Providers at the Same Location NPPES

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

Nurse Practitioner (Psychiatric/Mental Health)
100 GROVE ST STE 217C
WORCESTER, MA 01605

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 Grace Ngumi's NPI number?

The NPI number for Grace Ngumi is 1174137434. It was assigned to this individual provider in the NPPES registry on September 3, 2020. The provider is also known as Grace Ndungu.

Where is Grace Ngumi located?

Grace Ngumi practices at 100 Grove St Ste 217C, Worcester, MA 01605. The listed phone number is (774) 431-0272.

What is Grace Ngumi's specialty?

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

Is Grace Ngumi enrolled in Medicare?

Yes. Grace Ngumi 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.

Which organizations bill Medicare for Grace Ngumi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grace Ngumi reassigns Medicare benefits to 5 organizations: Bright Act Behavioral Center LLC (Worcester, MA), Behavioral Healthcare Services (Worcester, MA), Massachusetts Psychiatric Services, LLC (Sturbridge, MA), Holyoke Capital Jv, LLC (Holyoke, MA) and Thrive Counseling LLC (Lynchburg, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Grace Ngumi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Grace Ngumi accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Grace Ngumi 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 Grace Ngumi was last updated on June 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.