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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ANGELA MERLO MD
NPI 1851494264
Internal Medicine - Gastroenterology in Princeton, NJ

Active since September 07, 2006PECOS EnrolledAccepts Medicare Assignment
29 EMMONS DR STE G10, PRINCETON, NJ 08540(609) 896-0800(609) 919-0039 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Angela Merlo Md NPPES

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

ANGELA MERLO MD (NPI 1851494264) is an individual gastroenterology provider in Princeton, New Jersey, licensed in New Jersey (25MA05215800) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1982).

NPPES Registry Identity

NPI1851494264
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameANGELA MERLOCredential: MD
Location Address29 EMMONS DR STE G10Princeton, NJ 08540-5919
Mailing Address29 Emmons Dr Ste G10Princeton, NJ 08540-5919 · (609) 896-0800 · Fax (609) 919-0039
Phone(609) 896-0800
Fax(609) 919-0039
Sole ProprietorNo
Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 1982
Enumeration DateSeptember 7, 2006
Last NPPES UpdateJuly 24, 2026
NPPES CertifiedJuly 24, 2026
✔ NPI 1851494264 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NJ · 25MA05215800
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
29 EMMONS DR STE G10, Princeton, NJ 08540
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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

Angela Merlo 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 ID4688569114
PECOS Enrollment IDI20080910000200
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 08540 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
$140.34 typical visit price
range $61.59 – $185.05
Typical copayment $35.08 (range $15.39 – $46.26)
Most-billed visit code 99204
Established Patient
$107.94 typical visit price
range $20.08 – $150.98
Typical copayment $26.98 (range $5.02 – $37.74)
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.

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 Angela Merlo's NPI number?

The NPI number for Angela Merlo is 1851494264. It was assigned to this individual provider in the NPPES registry on September 7, 2006.

Where is Angela Merlo located?

Angela Merlo practices at 29 Emmons Dr Ste G10, Princeton, NJ 08540. The listed phone number is (609) 896-0800.

What is Angela Merlo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Angela Merlo enrolled in Medicare?

Yes. Angela Merlo 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.

When was this NPI record last updated?

The NPPES record for Angela Merlo was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days 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.