MARGARET HARVEY GRANITTO NP
NPI 1457585515
Nurse Practitioner in Bethesda, MD
About Margaret Harvey Granitto Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET HARVEY GRANITTO NP (NPI 1457585515) is an individual nurse practitioner in Bethesda, Maryland, licensed in Maryland (R084918) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Luminis Health Anne Arundel Medical Center, Inc, and is a graduate of Other (1987).
NPPES Registry Identity
Specialties & Licenses 2
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
Margaret Harvey Granitto Np 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.
Medicare Billing Reassignments
2Medicare enrollment records show Margaret Granitto reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1376887844 (Maryland)
- 3,530 clinicians in this Medicare group
Washington, DC 20010
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 277 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 4
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Luminis Health Anne Arundel Medical Center, Inc
Acute Care Hospitals · Annapolis, MDUniversity Of MD Shore Medical Center At Easton
Acute Care Hospitals · Easton, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20814 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BETHESDA, MD 20814
BETHESDA, MD 20814
BETHESDA, MD 20814
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 Margaret Granitto's NPI number?
The NPI number for Margaret Granitto is 1457585515. It was assigned to this individual provider in the NPPES registry on May 5, 2009.
Where is Margaret Granitto located?
Margaret Granitto practices at 8600 Old Georgetown Rd, Bethesda, MD 20814. The listed phone number is (301) 896-3181.
What is Margaret Granitto's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Margaret Granitto enrolled in Medicare?
Yes. Margaret Granitto 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 Margaret Granitto's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Granitto reassigns Medicare benefits to 2 organizations: Medstar Medical Group II LLC (Washington, DC) and Medstar Heart Institute LLC (Washington, DC). 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 Margaret Granitto's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Margaret Granitto affiliated with any hospitals?
According to CMS data, Margaret Granitto is affiliated with Luminis Health Anne Arundel Medical Center, Inc and University Of MD Shore Medical Center At Easton.
When was this NPI record last updated?
The NPPES record for Margaret Granitto was last updated on March 4, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Margaret Harvey Granitto, NP · NPI 1457585515
Nurse Practitioner physician in Bethesda, Maryland. Individual provider, active in the CMS NPPES registry since May 5, 2009.
## Identity
- **NPI:** 1457585515 (Entity type: Individual)
- **Enumerated:** May 5, 2009
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** R084918 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8600 OLD GEORGETOWN RD, Bethesda, MD 20814-1422
- **Phone:** (301) 896-3181
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group II LLC (NPI 1205562816, Washington, DC); Medstar Heart Institute LLC (NPI 1528345378, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1987
## Record status
- **NPPES last updated:** March 4, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1457585515) · Data from the CMS NPPES public registry.