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MELISSA POSNER M.D.
NPI 1255699005
Pediatrics in New Haven, CT

Active since April 30, 2012PECOS Enrolled
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL, NEW HAVEN, CT 06510(203) 688-4242(203) 688-5599 Get Directions Write a Review

NPPES record last updated: November 14, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 14, 2022, Dec 10, 2015 (2 updates tracked since 2015).

About Melissa Posner M.d. NPPES

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

MELISSA POSNER M.D. (NPI 1255699005) is an individual pediatrics provider in New Haven, Connecticut, licensed in Connecticut (054429) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in Hartford.

NPPES Registry Identity

NPI1255699005
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMELISSA POSNERCredential: M.D.
Location Address20 YORK ST # T-209, YALE-NEW HAVEN HOSPITALNew Haven, CT 06510-3220
Mailing Address20 York St # T-209, Yale-new Haven HospitalNew Haven, CT 06510-3220 · (203) 688-4242 · Fax (203) 688-5599
Phone(203) 688-4242
Fax(203) 688-5599
Sole ProprietorYes
Enumeration DateApril 30, 2012
Last NPPES UpdateNovember 14, 20222 updates tracked since enumeration
NPPES CertifiedNovember 14, 2022
✔ NPI 1255699005 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CT · 054429
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
20 YORK ST # T-209, New Haven, CT 06510
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Secondary Practice Location 1

Location 1282 Washington StHartford, CT 06106-3322 · Phone (860) 545-8950

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Melissa Posner 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 Melissa Posner reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yale University
0.4 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
Connecticut Children's Specialty Group, Inc.
34 mi
Pediatrics
282 WASHINGTON ST
Hartford, CT 06106
  • Reassigned Medicare billing, Connecticut enrollment
  • 601 clinicians in this Medicare group
NPI 1669448882 (860) 545-9000
Nuvance Health Medical Practice PC
58 mi
Internal Medicine
45 READE PLACE
Poughkeepsie, NY 12601
  • Reassigned Medicare billing, Connecticut enrollment
  • 88 clinicians in this Medicare group
NPI 1437358033 (845) 475-9661

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 06510 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.

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. JENNIFER BUENZLE DWYER M.D., PH.D.
Psychiatry & Neurology (Child & Adolescent Psychiatry)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 433-2788
DR. CHENGJIE ZHENG MD
Student in an Organized Health Care Education/Training Program
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 789-3989
MELISSA ANNE MUCH M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2259
DR. BRYAN C. SHELBY MD
Psychiatry & Neurology (Psychiatry)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2259
JOSEPH DANIEL FLYNN
Psychiatry & Neurology (Psychiatry)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2259
MARIA GHANBARI MOTLAGH MD
Psychiatry & Neurology (Addiction Psychiatry)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2259
ZARA AWAN
Student in an Organized Health Care Education/Training Program
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2259
PICHAMOL JIRAPINYO MD
Internal Medicine (Gastroenterology)
20 YORK ST # T-209, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2259

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 Melissa Posner's NPI number?

The NPI number for Melissa Posner is 1255699005. It was assigned to this individual provider in the NPPES registry on April 30, 2012.

Where is Melissa Posner located?

Melissa Posner practices at 20 York St # T-209 Yale-New Haven Hospital, New Haven, CT 06510. The listed phone number is (203) 688-4242.

What is Melissa Posner's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Melissa Posner enrolled in Medicare?

Yes. Melissa Posner is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Melissa Posner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Posner reassigns Medicare benefits to 3 organizations: Yale University (New Haven, CT), Connecticut Children's Specialty Group, Inc. (Hartford, CT) and Nuvance Health Medical Practice PC (Poughkeepsie, NY). 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 Melissa Posner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melissa Posner accept?

Health plans from Anthem Blue Cross and Blue Shield list Melissa Posner 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 Melissa Posner was last updated on November 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.