HEIDI WERNER M.D.
NPI 1346434891
Pediatrics - Pediatric Emergency Medicine in Boston, MA
About Heidi Werner M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HEIDI WERNER M.D. (NPI 1346434891) is an individual pediatric emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (239178) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
Heidi Werner M.d. 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
4Medicare enrollment records show Heidi Werner reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1174598296 (California)
- 637 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 1,159 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Heidi Werner's NPI number?
The NPI number for Heidi Werner is 1346434891. It was assigned to this individual provider in the NPPES registry on August 28, 2007.
Where is Heidi Werner located?
Heidi Werner practices at 840 Harrison Ave Menino 1, Boston, MA 02118. The listed phone number is (617) 414-4991.
What is Heidi Werner's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.
Is Heidi Werner enrolled in Medicare?
Yes. Heidi Werner 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 Heidi Werner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Heidi Werner reassigns Medicare benefits to 4 organizations: University Of California Sfgh Medical Group (San Francisco, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Ucsf Pediatrics Associates (San Francisco, CA). 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 Heidi Werner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Heidi Werner was last updated on May 9, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Heidi Werner, M.D. · NPI 1346434891
Pediatric Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since August 28, 2007.
## Identity
- **NPI:** 1346434891 (Entity type: Individual)
- **Enumerated:** August 28, 2007
- **Primary specialty:** Pediatrics - Pediatric Emergency Medicine · taxonomy 2080P0204X
- **State license:** 239178 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 840 HARRISON AVE, MENINO 1, Boston, MA 02118-2905
- **Phone:** (617) 414-4991 · **Fax:** (617) 414-4999
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): University Of California Sfgh Medical Group (NPI 1265407381, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** May 9, 2014
- **Other identifiers:** Medicaid 110088538A (MA); Medicare PIN S400126329 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1346434891) · Data from the CMS NPPES public registry.