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DR. WALTHER M PFEIFER M.D.
NPI 1083787212
Pathology - Anatomic Pathology & Clinical Pathology in Boston, MA

Active since November 16, 2006PECOS EnrolledAccepts Medicare Assignment
670 ALBANY ST, BOSTON, MA 02118(617) 414-7038(617) 414-5315 Get Directions Write a Review

NPPES record last updated: September 17, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Walther M Pfeifer M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WALTHER M PFEIFER M.D. (NPI 1083787212) is an individual anatomic pathology & clinical pathology provider in Boston, Massachusetts, licensed in Massachusetts (228155) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1994).

NPPES Registry Identity

NPI1083787212
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameDR. WALTHER M PFEIFERCredential: M.D.
Location Address670 ALBANY STBoston, MA 02118-2646
Mailing Address214 Hillcrest RdNeedham, MA 02492-3925
Phone(617) 414-7038
Fax(617) 414-5315
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateNovember 16, 2006
Last NPPES UpdateSeptember 17, 2009
✔ NPI 1083787212 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in MA · 228155
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
670 ALBANY ST, Boston, MA 02118
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.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. Walther M Pfeifer 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.

PECOS PAC ID7618061268
PECOS Enrollment IDI20260507001253
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Walther Pfeifer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Seacoast Pathology Inc.
34 mi
Anatomic Pathology & Clinical Pathology
25 HIGHLAND AVE
Newburyport, MA 01950
  • Reassigned Medicare billing, Massachusetts and Maine enrollments
  • Also billed through NPI 1154651230 (Maine)
  • 9 clinicians in this Medicare group
NPI 1861602898 (978) 463-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician 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.

New Patient
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. LEE EDWIN GOLDSTEIN M.D., PH.D.
Psychiatry & Neurology (Psychiatry)
670 ALBANY ST
BOSTON, MA 02118
Suffolk County (617) 414-8361
DAVID H.K. CHUI MD
Pathology (Hematology)
670 ALBANY ST, 3RD FLOOR
BOSTON, MA 02118
Suffolk County (617) 414-5314
DONGSHENG XU M.D.
Pathology (Clinical Pathology/Laboratory Medicine)
670 ALBANY ST, 3RD FLOOR
BOSTON, MA 02118
Suffolk County (617) 414-5314
DR. SERGIO MAURICIO LERMA NARVAEZ MD
Pediatrics (Pediatric Infectious Diseases)
670 ALBANY ST
BOSTON, MA 02118
Suffolk County (617) 414-5591
ANTONIO DE LAS MORENAS MD
Pathology (Anatomic Pathology & Clinical Pathology)
670 ALBANY ST, 3RD FLOOR
BOSTON, MA 02118
Suffolk County (617) 414-5314
DR. HONGYING HUANG M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
670 ALBANY ST, BIOSQUARE III, 3RD FLOOR, 304
BOSTON, MA 02118
Suffolk County (617) 414-5308
DR. DANA ROBIN SEMMEL M.D.
Pathology (Anatomic Pathology)
670 ALBANY ST, SUITE 304
BOSTON, MA 02118
Suffolk County (617) 414-4291
ALVARO PIAZZETTA PINTO MD
Student in an Organized Health Care Education/Training Program
670 ALBANY ST, 3RD FLOOR
BOSTON, MA 02118
Suffolk County (617) 414-5314

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 Walther Pfeifer's NPI number?

The NPI number for Walther Pfeifer is 1083787212. It was assigned to this individual provider in the NPPES registry on November 16, 2006.

Where is Walther Pfeifer located?

Walther Pfeifer practices at 670 Albany St, Boston, MA 02118. The listed phone number is (617) 414-7038.

What is Walther Pfeifer's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Walther Pfeifer enrolled in Medicare?

Yes. Walther Pfeifer 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 organization bills Medicare for Walther Pfeifer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Walther Pfeifer reassigns Medicare benefits to Seacoast Pathology Inc. (Newburyport, MA). The 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 Walther Pfeifer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Walther Pfeifer accept?

Health plans from Taro Health list Walther Pfeifer 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 Walther Pfeifer was last updated on September 17, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.