NANCY C HAFF MD
NPI 1922411867
Internal Medicine in Wellesley, MA
About Nancy C Haff Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANCY C HAFF MD (NPI 1922411867) is an individual internal medicine provider in Wellesley, Massachusetts, licensed in Massachusetts (269993) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Nancy C Haff Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02481 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Nancy Haff's NPI number?
The NPI number for Nancy Haff is 1922411867. It was assigned to this individual provider in the NPPES registry on June 9, 2014.
Where is Nancy Haff located?
Nancy Haff practices at 70 Hastings St Ste 200, Wellesley, MA 02481. The listed phone number is (781) 772-8600.
What is Nancy Haff's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Nancy Haff enrolled in Medicare?
Yes. Nancy Haff is registered in the Medicare PECOS enrollment system.
What insurance does Nancy Haff accept?
Health plans from Anthem Blue Cross and Blue Shield list Nancy Haff 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.
When was this NPI record last updated?
The NPPES record for Nancy Haff was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.