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DR. CATHERINE A JAMES MD
NPI 1700835089
Pediatrics - Pediatric Emergency Medicine in Worcester, MA

Active since May 06, 2006PECOS EnrolledAccepts Medicare Assignment
5 NEPONSET ST, WORCESTER, MA 01606(508) 595-2700(774) 221-5136 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 7, 2026, Jul 27, 2026, Apr 18, 2017 (3 updates tracked since 2017).

About Dr. Catherine A James Md NPPES

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

DR. CATHERINE A JAMES MD (NPI 1700835089) is an individual pediatric emergency medicine provider in Worcester, Massachusetts, licensed in Massachusetts (204299) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1700835089
Entity TypeIndividualFemale
Primary Taxonomy2080P0204X
Provider Legal NameDR. CATHERINE A JAMESCredential: MD
Location Address5 NEPONSET STWorcester, MA 01606-2714
Mailing Address1400 Worcester StNatick, MA 01760-1532 · (508) 595-2700 · Fax (774) 221-5136
Phone(508) 595-2700
Fax(774) 221-5136
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateMay 6, 2006
Last NPPES UpdateAugust 7, 20263 updates tracked since enumeration
NPPES CertifiedAugust 7, 2026
✔ NPI 1700835089 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0204X
License✔ Licensed in MA · 204299
Definition
A pediatrician who has special qualifications to manage emergencies in infants and children.
Also ListedPediatricsTaxonomy 208000000X · License 204299 (MA)
5 NEPONSET ST, Worcester, MA 01606
Open in Google Maps ↗

Other Identifiers 2

Medicaid110062684AMA
MedicaidA31003MA

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. Catherine A James 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.

PECOS PAC ID3072584747
PECOS Enrollment IDI20260630002447
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 Reassignments

2

Medicare enrollment records show Catherine James reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Reliant Medical Group, Inc
Same address
Family Medicine
5 NEPONSET ST
Worcester, MA 01606
  • Reassigned Medicare billing, Massachusetts enrollment
  • 718 clinicians in this Medicare group
NPI 1720017528 (508) 852-0600
Mass General Brigham Medical Group Northern Massachusetts Inc
48 mi
Emergency Medicine
81 HIGHLAND AVE
Salem, MA 01970
  • Reassigned Medicare billing, Massachusetts enrollment
  • 994 clinicians in this Medicare group
NPI 1588606123 (978) 354-4173

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

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. PRANATHI NARAYANAREDDY
Internal Medicine (Rheumatology)
5 NEPONSET ST
WORCESTER, MA 01606
Worcester County (508) 595-2855
ROBERT A YOOD MD
Internal Medicine (Rheumatology)
5 NEPONSET ST
WORCESTER, MA 01606
Worcester County (508) 595-2855
MATTHEW S HORSFIELD MD
Family Medicine
5 NEPONSET ST
WORCESTER, MA 01606
Worcester County (508) 425-5566
DANIELLE HARN NP
Nurse Practitioner (Family)
5 NEPONSET ST
WORCESTER, MA 01606
Worcester County (508) 425-5566
TERESA L STONE OD
Optometrist
5 NEPONSET ST
WORCESTER, MA 01606
Worcester County (508) 856-9599
MEAGHAN SAWTELLE
Physician Assistant
5 NEPONSET ST
WORCESTER, MA 01606
Worcester County (508) 368-7800
CHRISTINE CASTLE MSRD
Nutritionist
5 NEPONSET ST
WORCESTER, MA 01606
Worcester County (508) 852-6175
BRITTANY ALBERTA JASO PHD
Psychologist
5 NEPONSET ST
WORCESTER, MA 01606
Worcester County (508) 856-0732

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 Catherine James's NPI number?

The NPI number for Catherine James is 1700835089. It was assigned to this individual provider in the NPPES registry on May 6, 2006.

Where is Catherine James located?

Catherine James practices at 5 Neponset St, Worcester, MA 01606. The listed phone number is (508) 595-2700.

What is Catherine James's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.

Is Catherine James enrolled in Medicare?

Yes. Catherine James 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 Catherine James's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Catherine James reassigns Medicare benefits to 2 organizations: Reliant Medical Group, Inc (Worcester, MA) and Mass General Brigham Medical Group Northern Massachusetts Inc (Salem, MA). 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 Catherine James'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 Catherine James was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.