NAOMI I YAGER CRNP
NPI 1699172437
Nurse Practitioner - Women's Health in Winchester, MA
About Naomi I Yager Crnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NAOMI I YAGER CRNP (NPI 1699172437) is an individual women's health provider in Winchester, Massachusetts, licensed in Massachusetts (RN2291697) and active in the NPI registry since November 2014. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
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
Naomi I Yager Crnp 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
7Medicare enrollment records show Naomi Yager reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- 477 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 2,579 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,026 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Doylestown, PA 18901
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MAWinchester Hospital
Acute Care Hospitals · Winchester, MALahey Hospital & Medical Center, Burlington
Acute Care Hospitals · Burlington, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01890 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 6
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WINCHESTER, MA 01890
WINCHESTER, MA 01890
WINCHESTER, MA 01890
WINCHESTER, MA 01890
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 Naomi Yager's NPI number?
The NPI number for Naomi Yager is 1699172437. It was assigned to this individual provider in the NPPES registry on November 21, 2014.
Where is Naomi Yager located?
Naomi Yager practices at 620 Washington St, Winchester, MA 01890. The listed phone number is (781) 756-5000.
What is Naomi Yager's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Women's Health, with taxonomy code 363LW0102X.
Is Naomi Yager enrolled in Medicare?
Yes. Naomi Yager 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 Naomi Yager's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Naomi Yager reassigns Medicare benefits to 7 organizations: Beth Israel Lahey Health Specialty Care, Inc. (Burlington, MA), Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA), Dana-Farber Cancer Institute, Inc. (Boston, MA) and 2 more organizations, listed in the Medicare section above. 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 Naomi Yager's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Naomi Yager accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Naomi Yager 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.
Is Naomi Yager affiliated with any hospitals?
According to CMS data, Naomi Yager is affiliated with Massachusetts General Hospital, Beth Israel Deaconess Medical Center, Winchester Hospital and Lahey Hospital & Medical Center, Burlington.
When was this NPI record last updated?
The NPPES record for Naomi Yager was last updated on March 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Naomi I Yager, CRNP · NPI 1699172437
Women's Health physician in Winchester, Massachusetts. Individual provider, active in the CMS NPPES registry since November 21, 2014.
## Identity
- **NPI:** 1699172437 (Entity type: Individual)
- **Enumerated:** November 21, 2014
- **Primary specialty:** Nurse Practitioner - Women's Health · taxonomy 363LW0102X
- **State license:** RN2291697 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 620 WASHINGTON ST, Winchester, MA 01890-1328
- **Phone:** (781) 756-5000
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Beth Israel Lahey Health Specialty Care, Inc. (NPI 1427161660, Burlington, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA); Dana-Farber Cancer Institute, Inc. (NPI 1851333686, Boston, MA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 2014
## Record status
- **NPPES last updated:** March 24, 2026
- **Other identifiers:** Other RN2291697 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1699172437) · Data from the CMS NPPES public registry.