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DR. CAROLINE O BLACK M.D.
NPI 1023351079
Emergency Medicine - Pediatric Emergency Medicine in Greenwich, CT

Active since March 28, 2013PECOS Enrolled
EMERGENCY DEPARTMENT, 5 PERRYRIDGE ROAD, GREENWICH, CT 06830(032) 863-3637 Get Directions Write a Review

NPPES record last updated: June 2, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 2, 2025, Jul 18, 2019, Dec 29, 2016 (3 updates tracked since 2016).

About Dr. Caroline O Black M.d. NPPES

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

DR. CAROLINE O BLACK M.D. (NPI 1023351079) is an individual pediatric emergency medicine provider in Greenwich, Connecticut, licensed in Connecticut (79850) and active in the NPI registry since March 2013. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1023351079
Entity TypeIndividualFemale
Primary Taxonomy207PP0204X
Provider Legal NameDR. CAROLINE O BLACKCredential: M.D.
Location AddressEMERGENCY DEPARTMENT, 5 PERRYRIDGE ROADGreenwich, CT 06830
Mailing AddressPo Box 1149 One Gustatve Place, Mt Sinai Medical Center Dept Of Emergency MedicineNew York, NY 10029-0311 · (212) 824-8069 · Fax (212) 241-1279
Phone(032) 863-3637
Sole ProprietorYes
Enumeration DateMarch 28, 2013
Last NPPES UpdateJune 2, 20253 updates tracked since enumeration
NPPES CertifiedMay 19, 2025
✔ NPI 1023351079 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency Medicine · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207PP0204X
Licenses✔ Licensed in CT · 79850✔ Licensed in NJ · 25MA10612900
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.
EMERGENCY DEPARTMENT, Greenwich, CT 06830
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Other Names 1

Former Name (1)Dr. Caroline O Adegite M.d.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Caroline O Black 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 Reassignments

3

Medicare enrollment records show Caroline Black reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Greenwich Hospital
0.4 mi
General Acute Care Hospital
5 PERRYRIDGE RD
Greenwich, CT 06830
  • Reassigned Medicare billing, Connecticut enrollment
  • 268 clinicians in this Medicare group
NPI 1609846088 (203) 863-3000
Yale University
40 mi
Advanced Practice Midwife
100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 3,728 clinicians in this Medicare group
NPI 1124148887 (203) 737-5432
Hackensack Meridian Health Medical Group - Specialty Care PC
55 mi
Surgical Critical Care
331 NEWMAN SPRINGS RD STE 220
Red Bank, NJ 07701
  • Reassigned Medicare billing, New Jersey enrollment
  • 2,844 clinicians in this Medicare group
NPI 1215989249 (732) 807-0800

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06830 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
$93.86 typical visit price
range $60.82 – $183.10
Typical copayment $23.46 (range $15.20 – $45.77)
Most-billed visit code 99203
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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 Caroline Black's NPI number?

The NPI number for Caroline Black is 1023351079. It was assigned to this individual provider in the NPPES registry on March 28, 2013. The provider is also known as Dr. Caroline O Adegite M.D..

Where is Caroline Black located?

Caroline Black practices at Emergency Department 5 Perryridge Road, Greenwich, CT 06830. The listed phone number is (032) 863-3637.

What is Caroline Black's specialty?

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

Is Caroline Black enrolled in Medicare?

Yes. Caroline Black is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Caroline Black's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Caroline Black reassigns Medicare benefits to 3 organizations: Greenwich Hospital (Greenwich, CT), Yale University (New Haven, CT) and Hackensack Meridian Health Medical Group - Specialty Care PC (Red Bank, NJ). 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 Caroline Black'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 Caroline Black was last updated on June 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.