Grace Waithiegeni Muriithi
Family Nurse Practitioner · Worcester, MA
Grace Waithiegeni Muriithi is a family nurse practitioner with a practice address in Worcester, Massachusetts, and NPI 1316659824, issued on Dec 15, 2022. Check the license (Massachusetts RN2284555, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Grace Waithiegeni Muriithi
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN2284555 MA
Self-reported in NPPES; status is on the state search - Practice location
- 60A Apthorp St, Worcester, MA 01606
- Phone
- (508) 615-2569
- Enumerated
- Dec 15, 2022
- Record last updated
- Mar 14, 2024
- Medicare enrollment
- Enrolled (PECOS I20231005003203); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →
Verify Grace Waithiegeni Muriithi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2284555Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average family nurse practitioner in 2024
320 Medicare Part D claims for 68 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 58 claims were for opioids.
Most prescribed
- Warfarin Sodium65 claims
- Tramadol Hcl25 claims
- Clonazepam24 claims
- Lorazepam21 claims
- Oxycodone Hcl15 claims
- Furosemide11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Worcester Internal Medicine, Inc.Worcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grace Waithiegeni Muriithi among 4,724 family nurse practitioner records in Massachusetts
Grace Waithiegeni Muriithi is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 72% of them.
- NPI issued2022 · 72% of these records are older, 21% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2023 · median 2019 among the 2,704 with a school on file
- Record last updated2024 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
177 family nurse practitioner records list a practice address in Worcester
They are 177 of the 13,166 NPPES records with a practice address in Worcester, and 4,724 family nurse practitioner records in Massachusetts.
All 4,724 in Massachusetts → Every provider in Worcester → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Ifeoma Asiegbu, CNP, FNP, RNWorcester, MA 016061174117444
- Nicole Barr, NPWorcester, MA 016061700524873
- Sylvia DarkoWorcester, MA 016061922742030
- Savanna Giotas, FNP-BCWorcester, MA 016061952911182
- Allison Grimaldo, NPWorcester, MA 016061205571726
- Danielle Harn, NPWorcester, MA 016061023703436
- Farrell Jolly, A.P.R.N., D.C.Worcester, MA 016061780876094
- Nancyver Lafleur-OmelerWorcester, MA 016061497445019
Common questions
What is Grace Waithiegeni Muriithi's NPI number?
Grace Waithiegeni Muriithi's National Provider Identifier (NPI) is 1316659824, issued on Dec 15, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Grace Waithiegeni Muriithi located?
The NPPES record lists a practice address at 60A Apthorp St, Worcester, MA, 01606. Phone: (508) 615-2569. Providers update this record themselves, so call before visiting.
How can I verify Grace Waithiegeni Muriithi's license?
NPPES lists Massachusetts license number RN2284555, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Grace Waithiegeni Muriithi prescribe under Medicare Part D?
In 2024, Grace Waithiegeni Muriithi had 320 Medicare Part D claims for 68 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.