PHILIP WILLIAM MACK MD
NPI 1861476798
Orthopaedic Surgery in Springfield, MA
About Philip William Mack Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHILIP WILLIAM MACK MD (NPI 1861476798) is an individual orthopaedic surgery provider in Springfield, Massachusetts, licensed in Massachusetts (208323) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Hartford, and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Philip William Mack 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 Reassignment
Medicare enrollment records show Philip Mack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 601 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01104 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SPRINGFIELD, MA 01104
SPRINGFIELD, MA 01104
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 Philip Mack's NPI number?
The NPI number for Philip Mack is 1861476798. It was assigned to this individual provider in the NPPES registry on December 5, 2005.
Where is Philip Mack located?
Philip Mack practices at 516 Carew St, Springfield, MA 01104. The listed phone number is (413) 787-2047.
What is Philip Mack's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Philip Mack enrolled in Medicare?
Yes. Philip Mack 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 Philip Mack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Philip Mack reassigns Medicare benefits to Connecticut Children's Specialty Group, Inc. (Hartford, CT). 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 Philip Mack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Philip Mack accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Philip Mack 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 Philip Mack was last updated on April 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Philip William Mack, MD · NPI 1861476798
Orthopaedic Surgery physician in Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since December 5, 2005.
## Identity
- **NPI:** 1861476798 (Entity type: Individual)
- **Enumerated:** December 5, 2005
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 208323 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 516 CAREW ST, Springfield, MA 01104-2330
- **Phone:** (413) 787-2047 · **Fax:** (413) 787-2054
## 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:** Connecticut Children's Specialty Group, Inc. (NPI 1669448882, Hartford, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1989
## Record status
- **NPPES last updated:** April 11, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1861476798) · Data from the CMS NPPES public registry.