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GRACE WAITHIEGENI MURIITHI
NPI 1316659824
Nurse Practitioner - Family in Worcester, MA

Active since December 15, 2022PECOS EnrolledAccepts Medicare Assignment
60A APTHORP ST, WORCESTER, MA 01606(508) 615-2569 Get Directions Write a Review

NPPES record last updated: March 14, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Grace Waithiegeni Muriithi NPPES

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

GRACE WAITHIEGENI MURIITHI (NPI 1316659824) is an individual family provider in Worcester, Massachusetts, licensed in Massachusetts (RN2284555) and active in the NPI registry since December 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1316659824
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameGRACE WAITHIEGENI MURIITHI
Location Address60A APTHORP STWorcester, MA 01606-1104
Mailing Address60a Apthorp StWorcester, MA 01606-1104 · (508) 615-2569
Phone(508) 615-2569
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateDecember 15, 2022
Last NPPES UpdateMarch 14, 2024
NPPES CertifiedMarch 13, 2024
✔ NPI 1316659824 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MA · RN2284555
60A APTHORP ST, Worcester, MA 01606
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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 Waithiegeni Muriithi 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 ID7416302716
PECOS Enrollment IDI20231005003203
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

3

Medicare enrollment records show Grace Muriithi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Worcester Internal Medicine, Inc.
4.2 mi
Internal Medicine
416 BELMONT ST
Worcester, MA 01604
  • Reassigned Medicare billing, Massachusetts enrollment
  • 22 clinicians in this Medicare group
NPI 1063565422 (508) 756-1808
Hkd Outreach PC
36 mi
Internal Medicine
1192 BLUE HILL AVE
Mattapan, MA 02126
  • Reassigned Medicare billing, Massachusetts enrollment
  • 28 clinicians in this Medicare group
NPI 1982082723 (617) 201-1002
Signify Health Medical Associates, PLLC
1,512 mi
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Massachusetts enrollment
  • 203 clinicians in this Medicare group
NPI 1750845863 (972) 715-3800

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 7

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 nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
468 services75 patients
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309
A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.
174 services38 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
62 services38 patients
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 99310
A follow-up nursing facility visit is a routine check-up that typically lasts about 35 minutes. During this visit, your health status is evaluated, any changes in your condition are noted, and necessary adjustments to your care plan are made. It's an essential part of maintaining your health.
53 services39 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
35 services15 patients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308
A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.
34 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01606 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.

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 Muriithi's NPI number?

The NPI number for Grace Muriithi is 1316659824. It was assigned to this individual provider in the NPPES registry on December 15, 2022.

Where is Grace Muriithi located?

Grace Muriithi practices at 60A Apthorp St, Worcester, MA 01606. The listed phone number is (508) 615-2569.

What is Grace Muriithi's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Grace Muriithi enrolled in Medicare?

Yes. Grace Muriithi 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 Muriithi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grace Muriithi reassigns Medicare benefits to 3 organizations: Worcester Internal Medicine, Inc. (Worcester, MA), Hkd Outreach PC (Mattapan, MA) and Signify Health Medical Associates, PLLC (Dallas, TX). 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 Muriithi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Grace Muriithi was last updated on March 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.