ISABEL C GUERRERO MD
NPI 1568456580
Internal Medicine - Infectious Disease in Toms River, NJ
About Isabel C Guerrero Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ISABEL C GUERRERO MD (NPI 1568456580) is an individual infectious disease provider in Toms River, New Jersey, licensed in New Jersey (MA39476) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS, is affiliated with Community Medical Center, and is a graduate of Rowan University School Of Osteopathic Medicine (1972).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Isabel C Guerrero Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Isabel Guerrero reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Toms River, NJ 08755
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: Ocean County Board Of Health
- 8 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.
Areas of Expertise CMS Part B claims 3
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Community Medical Center
Acute Care Hospitals · Toms River, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08755 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TOMS RIVER, NJ 08755
TOMS RIVER, NJ 08755
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 Isabel Guerrero's NPI number?
The NPI number for Isabel Guerrero is 1568456580. It was assigned to this individual provider in the NPPES registry on September 6, 2005.
Where is Isabel Guerrero located?
Isabel Guerrero practices at 25 Mule Rd Suite B1, Toms River, NJ 08755. The listed phone number is (732) 286-2565.
What is Isabel Guerrero's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Isabel Guerrero enrolled in Medicare?
Yes. Isabel Guerrero is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Isabel Guerrero's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Isabel Guerrero reassigns Medicare benefits to Ocean County Health Department (Toms River, NJ). 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 Isabel Guerrero's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Isabel Guerrero affiliated with any hospitals?
According to CMS data, Isabel Guerrero is affiliated with Community Medical Center.
When was this NPI record last updated?
The NPPES record for Isabel Guerrero was last updated on March 7, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Isabel C Guerrero, MD · NPI 1568456580
Infectious Disease physician in Toms River, New Jersey. Individual provider, active in the CMS NPPES registry since September 6, 2005.
## Identity
- **NPI:** 1568456580 (Entity type: Individual)
- **Enumerated:** September 6, 2005
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** MA39476 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 25 MULE RD, SUITE B1, Toms River, NJ 08755-5035
- **Phone:** (732) 286-2565 · **Fax:** (732) 286-7669
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Ocean County Health Department (NPI 1235142753, Toms River, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rowan University School Of Osteopathic Medicine, class of 1972
## Record status
- **NPPES last updated:** March 7, 2008
- **Other identifiers:** Medicare UPIN C56490; Medicare PIN 489489 (NJ); Medicare UPIN C56490 (NJ); and 1 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1568456580) · Data from the CMS NPPES public registry.