DR. SARAH KRANTZ MD
NPI 1164834875
Obstetrics & Gynecology in Boston, MA
About Dr. Sarah Krantz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SARAH KRANTZ MD (NPI 1164834875) is an individual obstetrics & gynecology provider in Boston, Massachusetts, licensed in Massachusetts (1016665) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS, is affiliated with Heywood Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Dr. Sarah Krantz Md 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
11Medicare enrollment records show Sarah Krantz reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 158 clinicians in this Medicare group
Dorchester, MA 02122
- Reassigned Medicare billing, Massachusetts enrollment
- 41 clinicians in this Medicare group
Hampstead, NH 03841
- Reassigned Medicare billing, New Hampshire enrollment
- 2,620 clinicians in this Medicare group
Manchester, NH 03102
- Reassigned Medicare billing, New Hampshire enrollment
- 199 clinicians in this Medicare group
Gardner, MA 01440
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: Heywood Medical Group Inc.
- 218 clinicians in this Medicare group
Gardner, MA 01440
- Reassigned Medicare billing, Massachusetts enrollment
- 344 clinicians in this Medicare group
York, ME 03909
- Reassigned Medicare billing, Maine enrollment
- 347 clinicians in this Medicare group
Athol, MA 01331
- Reassigned Medicare billing, Massachusetts enrollment
- 324 clinicians in this Medicare group
Keene, NH 03431
- Reassigned Medicare billing, New Hampshire enrollment
- 2,999 clinicians in this Medicare group
North Conway, NH 03860
- Reassigned Medicare billing, New Hampshire enrollment
- 173 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Heywood Hospital
Acute Care Hospitals · Gardner, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
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 Sarah Krantz's NPI number?
The NPI number for Sarah Krantz is 1164834875. It was assigned to this individual provider in the NPPES registry on May 29, 2014.
Where is Sarah Krantz located?
Sarah Krantz practices at 850 Harrison Avenue, Fl 4 Yawkey Bldg, Boston, MA 02118. The listed phone number is (617) 414-2000.
What is Sarah Krantz's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Sarah Krantz enrolled in Medicare?
Yes. Sarah Krantz 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 Sarah Krantz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Krantz reassigns Medicare benefits to 11 organizations: Boston University Obstetrics And Gynecology Foundation, Inc. (Boston, MA), Boston Medical Center Corporation (Dorchester, MA), Mary Hitchcock Memorial Hospital (Hampstead, NH), Catholic Medical Center (Manchester, NH), Heywood Affiliated Medical Group Inc. (Gardner, MA) and 6 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 Sarah Krantz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sarah Krantz accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Sarah Krantz 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 Sarah Krantz affiliated with any hospitals?
According to CMS data, Sarah Krantz is affiliated with Heywood Hospital.
When was this NPI record last updated?
The NPPES record for Sarah Krantz was last updated on June 22, 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.
# Dr. Sarah Krantz, MD · NPI 1164834875
Obstetrics & Gynecology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 29, 2014.
## Identity
- **NPI:** 1164834875 (Entity type: Individual)
- **Enumerated:** May 29, 2014
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 1016665 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 850 HARRISON AVENUE, FL 4, YAWKEY BLDG, Boston, MA 02118
- **Phone:** (617) 414-2000 · **Fax:** (617) 414-5798
## 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:** 11 organizations under Medicare reassignment (form CMS-855R): Boston University Obstetrics And Gynecology Foundation, Inc. (NPI 1063459568, Boston, MA); Boston Medical Center Corporation (NPI 1780874677, Dorchester, MA); Mary Hitchcock Memorial Hospital (NPI 1699584219, Hampstead, NH); Catholic Medical Center (NPI 1427154335, Manchester, NH); Heywood Affiliated Medical Group Inc. (NPI 1215304589, Gardner, MA); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** June 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1164834875) · Data from the CMS NPPES public registry.