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KATHERINE RUDDY MD
NPI 1447887955
Internal Medicine - Rheumatology in Summit, NJ

Active since March 25, 2020PECOS EnrolledAccepts Medicare Assignment
33 OVERLOOK RD STE L01, SUMMIT, NJ 07901(908) 598-7940(908) 598-5447 Get Directions Write a Review

NPPES record last updated: August 22, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 30, 2024, Mar 25, 2020 (2 updates tracked since 2020).

About Katherine Ruddy Md NPPES

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

KATHERINE RUDDY MD (NPI 1447887955) is an individual rheumatology provider in Summit, New Jersey, licensed in New Jersey (25MA12731700) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Morristown Medical Center, and is a graduate of Columbia University College Of Physicians And Surgeons (2020).

NPPES Registry Identity

NPI1447887955
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameKATHERINE RUDDYCredential: MD
Location Address33 OVERLOOK RD STE L01Summit, NJ 07901-3561
Mailing AddressPo Box 416457Boston, MA 02241-6457 · (844) 362-1735
Phone(908) 598-7940
Fax(908) 598-5447
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2020
Enumeration DateMarch 25, 2020
Last NPPES UpdateAugust 22, 20252 updates tracked since enumeration
NPPES CertifiedAugust 22, 2025
✔ NPI 1447887955 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in NJ · 25MA12731700
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
33 OVERLOOK RD STE L01, Summit, NJ 07901
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katherine Ruddy 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 ID8628486107
PECOS Enrollment IDI20250918000104
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Morristown Medical Center

Acute Care Hospitals · Morristown, NJ
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310015
Location100 Madison AveMorristown, NJ 07960 · Morris County
Emergency services Birthing friendly

Overlook Medical Center

Acute Care Hospitals · Summit, NJ
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310051
Location99 Beauvoir AvenueSummit, NJ 07901 · Union County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 07901 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
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
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 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ARATHI SETTY MD, MPH
Internal Medicine (Rheumatology)
33 OVERLOOK RD STE L01
SUMMIT, NJ 07901
Union County (908) 598-7940
KRISSY CHOI DO
Internal Medicine (Rheumatology)
33 OVERLOOK RD STE L01
SUMMIT, NJ 07901
Union County (908) 598-7340

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 Katherine Ruddy's NPI number?

The NPI number for Katherine Ruddy is 1447887955. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Where is Katherine Ruddy located?

Katherine Ruddy practices at 33 Overlook Rd Ste L01, Summit, NJ 07901. The listed phone number is (908) 598-7940.

What is Katherine Ruddy's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Katherine Ruddy enrolled in Medicare?

Yes. Katherine Ruddy 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.

Is Katherine Ruddy affiliated with any hospitals?

According to CMS data, Katherine Ruddy is affiliated with Morristown Medical Center and Overlook Medical Center.

When was this NPI record last updated?

The NPPES record for Katherine Ruddy was last updated on August 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.