JOHN FONTAINE MD
NPI 1811945017
Internal Medicine - Cardiovascular Disease in Philadelphia, PA
About John Fontaine Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN FONTAINE MD (NPI 1811945017) is an individual cardiovascular disease provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD042292L) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Geisinger Medical Center, and is a graduate of Rutgers, Robert Woood Johnson Medical School (1979).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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
John Fontaine 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
4Medicare enrollment records show John Fontaine reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 335 clinicians in this Medicare group
Christiana, PA 17509
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,080 clinicians in this Medicare group
Williamsport, PA 17701
- Reassigned Medicare billing, Pennsylvania enrollment
- 91 clinicians in this Medicare group
Jacksonville, FL 32209
- Reassigned Medicare billing, Florida enrollment
- 1,456 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Geisinger Medical Center
Acute Care Hospitals · Danville, PAUpmc Williamsport
Acute Care Hospitals · Williamsport, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 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.
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
PHILADELPHIA, PA 19107
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 John Fontaine's NPI number?
The NPI number for John Fontaine is 1811945017. It was assigned to this individual provider in the NPPES registry on May 4, 2006.
Where is John Fontaine located?
John Fontaine practices at 219 N Broad St 2nd Floor, Philadelphia, PA 19107. The listed phone number is (215) 762-5080.
What is John Fontaine's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is John Fontaine enrolled in Medicare?
Yes. John Fontaine 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 John Fontaine's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Fontaine reassigns Medicare benefits to 4 organizations: Drexel University (Philadelphia, PA), Wellspan Medical Group (Christiana, PA), Susquehanna Physician Services (Williamsport, PA) and University Of Florida Jacksonville Physicians Inc (Jacksonville, FL). 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 John Fontaine's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Fontaine affiliated with any hospitals?
According to CMS data, John Fontaine is affiliated with Geisinger Medical Center and Upmc Williamsport.
When was this NPI record last updated?
The NPPES record for John Fontaine was last updated on September 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# John Fontaine, MD · NPI 1811945017
Cardiovascular Disease physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since May 4, 2006.
## Identity
- **NPI:** 1811945017 (Entity type: Individual)
- **Enumerated:** May 4, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** MD042292L (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 219 N BROAD ST, 2ND FLOOR, Philadelphia, PA 19107-1519
- **Phone:** (215) 762-5080 · **Fax:** (215) 561-8071
## 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): Drexel University (NPI 1013012475, Philadelphia, PA); Wellspan Medical Group (NPI 1427509942, Christiana, PA); Susquehanna Physician Services (NPI 1831395912, Williamsport, PA); University Of Florida Jacksonville Physicians Inc (NPI 1104086479, Jacksonville, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers, Robert Woood Johnson Medical School, class of 1979
## Record status
- **NPPES last updated:** September 13, 2016
- **Other identifiers:** Medicare UPIN B80610 (PA); Medicare PIN 559272 (PA); Medicaid 001214146 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1811945017) · Data from the CMS NPPES public registry.