1. Home
  2. Directory
  3. New Jersey
  4. New Providence
  5. Pediatrics
  6. NPI Profile

MARLA GUZMAN M.D.
NPI 1285052662
Pediatrics - Pediatric Rheumatology in New Providence, NJ

Active since April 02, 2014PECOS Enrolled
890 MOUNTAIN AVE, NEW PROVIDENCE, NJ 07974(908) 739-3235 Get Directions Write a Review

NPPES record last updated: October 15, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Marla Guzman M.d. NPPES

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

MARLA GUZMAN M.D. (NPI 1285052662) is an individual pediatric rheumatology provider in New Providence, New Jersey, licensed in New Jersey (25MA10874600) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1285052662
Entity TypeIndividualFemale
Primary Taxonomy2080P0216X
Provider Legal NameMARLA GUZMANCredential: M.D.
Location Address890 MOUNTAIN AVENew Providence, NJ 07974-1218
Mailing Address1 Diamond Hill RdBerkeley Heights, NJ 07922-2104 · (908) 273-4300
Phone(908) 739-3235
Sole ProprietorNo
Enumeration DateApril 2, 2014
Last NPPES UpdateOctober 15, 2020
NPPES CertifiedOctober 15, 2020
✔ NPI 1285052662 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0216X
License✔ Licensed in NJ · 25MA10874600
Definition
A pediatrician who treats diseases of joints, muscle, bones and tendons. A pediatric rheumatologist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
890 MOUNTAIN AVE, New Providence, NJ 07974
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marla Guzman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Marla Guzman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Barnabas Health Medical Group PC
10 mi
Specialist
225 WILLIAMSON ST
Elizabeth, NJ 07202
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,894 clinicians in this Medicare group
NPI 1841557246 (888) 724-7123

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.

MS. MARGARET S CLARKE LPC
Counselor (Addiction (Substance Use Disorder))
890 MOUNTAIN AVE
NEW PROVIDENCE, NJ 07974
Union County (908) 277-8900
KATHRYN L KAYS LCSW
Social Worker (Clinical)
890 MOUNTAIN AVE
NEW PROVIDENCE, NJ 07974
Union County (908) 277-8900
DR. JOHANNA R. KAUFMAN MD
Pediatrics
890 MOUNTAIN AVE
NEW PROVIDENCE, NJ 07974
Union County (908) 277-8601
RACHAEL EKENEZAR LPC
Counselor (Professional)
890 MOUNTAIN AVE
NEW PROVIDENCE, NJ 07974
Union County (908) 277-8900
DR. GEOFFREY TALIS MD
Psychiatry & Neurology (Psychiatry)
890 MOUNTAIN AVE
NEW PROVIDENCE, NJ 07974
Union County (908) 277-8900
ALEXANDRA NICOLE LITTLE LSW
Social Worker (Clinical)
890 MOUNTAIN AVE
NEW PROVIDENCE, NJ 07974
Union County (908) 277-8900
MRS. ERIN ELIZABETH MCCRONE APN
Nurse Practitioner (Adult Health)
890 MOUNTAIN AVE
NEW PROVIDENCE, NJ 07974
Union County (908) 277-8639
LUCIA QUILES LPC
Counselor (Professional)
890 MOUNTAIN AVE
NEW PROVIDENCE, NJ 07974
Union County (908) 277-8900

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 Marla Guzman's NPI number?

The NPI number for Marla Guzman is 1285052662. It was assigned to this individual provider in the NPPES registry on April 2, 2014.

Where is Marla Guzman located?

Marla Guzman practices at 890 Mountain Ave, New Providence, NJ 07974. The listed phone number is (908) 739-3235.

What is Marla Guzman's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Rheumatology, with taxonomy code 2080P0216X.

Is Marla Guzman enrolled in Medicare?

Yes. Marla Guzman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marla Guzman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marla Guzman reassigns Medicare benefits to Barnabas Health Medical Group PC (Elizabeth, 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 Marla Guzman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marla Guzman accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Marla Guzman 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 Marla Guzman was last updated on October 15, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.