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MARK DOUGLAS BAKER MD
NPI 1568445872
Emergency Medicine - Pediatric Emergency Medicine in New Brunswick, NJ

Active since November 22, 2005PECOS Enrolled
125 PATERSON ST, NEW BRUNSWICK, NJ 08901(732) 235-7991 Get Directions Write a Review

NPPES record last updated: January 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 26, 2026, Jul 17, 2019 (2 updates tracked since 2019).

About Mark Douglas Baker Md NPPES

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

MARK DOUGLAS BAKER MD (NPI 1568445872) is an individual pediatric emergency medicine provider in New Brunswick, New Jersey, licensed in New Jersey (25MA10666500) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1568445872
Entity TypeIndividualMale
Primary Taxonomy207PP0204X
Provider Legal NameMARK DOUGLAS BAKERCredential: MD
Location Address125 PATERSON STNew Brunswick, NJ 08901-1962
Mailing Address125 Paterson StNew Brunswick, NJ 08901-1962 · (732) 235-7991
Phone(732) 235-7991
Sole ProprietorNo
Enumeration DateNovember 22, 2005
Last NPPES UpdateJanuary 26, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 26, 2026
✔ NPI 1568445872 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency Medicine · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207PP0204X
License✔ Licensed in NJ · 25MA10666500
Definition
Pediatric Emergency Medicine is a clinical subspecialty that focuses on the care of the acutely ill or injured child in the setting of an emergency department.
125 PATERSON ST, New Brunswick, NJ 08901
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Other Identifiers 3

MedicaidPENDINGFL
Medicaid25MA10666500NJ
Medicaid352281401MD

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Douglas Baker Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 08901 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
$98.09 typical visit price
range $63.84 – $190.92
Typical copayment $24.52 (range $15.96 – $47.73)
Most-billed visit code 99203
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 20

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

DR. RICARDO E VERDINER MD
Anesthesiology (Critical Care Medicine)
125 PATERSON ST
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-6155
DR. IMRAN KHAN M.D., PH.D.
Internal Medicine
125 PATERSON ST, SUITE 5200
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-6531
RUTGERS HEALTH-RWJ SCLERODERMA PROGRAM
Internal Medicine (Rheumatology)
125 PATERSON ST, SUITE 5200A
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-7217
DOROTEA DEFRANCESCO PA
Physician Assistant (Surgical)
125 PATERSON ST, SUITE 4100
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-7800
KRISH KHATRI M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
125 PATERSON ST
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-7751
ADEOLA AWOMOLO MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
125 PATERSON ST
NEW BRUNSWICK, NJ 08901
Middlesex County (718) 909-4661
DR. MANISH S PATEL MD
Internal Medicine
125 PATERSON ST, ROOM 2330
NEW BRUNSWICK, NJ 08901
Middlesex County (732) 235-6539
FRANK JIANG
Internal Medicine
125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 5100A
NEW BRUNSWICK, NJ 08901
Middlesex County (832) 235-6968

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 Mark Baker's NPI number?

The NPI number for Mark Baker is 1568445872. It was assigned to this individual provider in the NPPES registry on November 22, 2005.

Where is Mark Baker located?

Mark Baker practices at 125 Paterson St, New Brunswick, NJ 08901. The listed phone number is (732) 235-7991.

What is Mark Baker's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Pediatric Emergency Medicine, with taxonomy code 207PP0204X.

Is Mark Baker enrolled in Medicare?

Yes. Mark Baker is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mark Baker was last updated on January 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.