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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.

CAITLIN GRIBBIN
NPI 1023579869
Internal Medicine - Hematology & Oncology in New York, NY

Active since March 26, 2019PECOS Enrolled
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 EAST 70TH STREET, NEW YORK, NY 10021(212) 746-9663(212) 746-3609 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Caitlin Gribbin NPPES

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

CAITLIN GRIBBIN (NPI 1023579869) is an individual hematology & oncology provider in New York, New York, licensed in New York (310625) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1023579869
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NameCAITLIN GRIBBIN
Location AddressWEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 EAST 70TH STREETNew York, NY 10021
Mailing AddressWeill Cornell Internal Medicine Associates, 505 East 70th StreetNew York, NY 10021 · (212) 746-9663 · Fax (212) 746-3609
Phone(212) 746-9663
Fax(212) 746-3609
Sole ProprietorYes
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 26, 2019
Last NPPES UpdateSeptember 29, 2026
NPPES CertifiedSeptember 29, 2026
✔ NPI 1023579869 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in NY · 310625
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, New York, NY 10021
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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

Caitlin Gribbin 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 ID2567790058
PECOS Enrollment IDI20250801001046
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

New York-Presbyterian Hospital

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330101
Location525 East 68th StreetNew York, NY 10065 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10021 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
$198.19 typical visit price
range $65.69 – $198.19
Typical copayment $49.54 (range $16.42 – $49.54)
Most-billed visit code 99205
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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.

SIMONE PRATHER MD
Student in an Organized Health Care Education/Training Program
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 E 70TH ST
NEW YORK, NY 10021
New York County (212) 746-2900
MS. YOUMNA MOUSTAFA AHMED ABDELGHANY M.D.
Student in an Organized Health Care Education/Training Program
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 EAST 70TH STREET
NEW YORK, NY 10021
New York County (212) 746-9663
CECILIA E.W. NICOL MD
Internal Medicine
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 EAST 70TH STREET
NEW YORK, NY 10021
New York County (212) 746-2942
ASHLEY EZEMA
Student in an Organized Health Care Education/Training Program
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 EAST 70TH STREET
NEW YORK, NY 10021
New York County (212) 746-2900
ADRIANO FERNAN CUADROS MD
Student in an Organized Health Care Education/Training Program
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 EAST 70TH STREET
NEW YORK, NY 10021
New York County (212) 746-4609
DR. MADELINE LILLY EHRENBERG MD
Student in an Organized Health Care Education/Training Program
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 EAST 70TH STREET
NEW YORK, NY 10021
New York County (212) 746-2900
DAVID TIANBAI ZHANG MD
Student in an Organized Health Care Education/Training Program
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 EAST 70TH STREET
NEW YORK, NY 10021
New York County (212) 746-2900
DR. STEPHANIE SUN TU MD
Student in an Organized Health Care Education/Training Program
WEILL CORNELL INTERNAL MEDICINE ASSOCIATES, 505 E 70TH ST
NEW YORK, NY 10021
New York County (212) 746-2900

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 Caitlin Gribbin's NPI number?

The NPI number for Caitlin Gribbin is 1023579869. It was assigned to this individual provider in the NPPES registry on March 26, 2019.

Where is Caitlin Gribbin located?

Caitlin Gribbin practices at Weill Cornell Internal Medicine Associates 505 East 70th Street, New York, NY 10021. The listed phone number is (212) 746-9663.

What is Caitlin Gribbin's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Caitlin Gribbin enrolled in Medicare?

Yes. Caitlin Gribbin 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.

Is Caitlin Gribbin affiliated with any hospitals?

According to CMS data, Caitlin Gribbin is affiliated with New York-Presbyterian Hospital.

When was this NPI record last updated?

The NPPES record for Caitlin Gribbin was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.