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DR. JOHN G LARSEN MD
NPI 1700974169
Pediatrics - Pediatric Infectious Diseases in New York City, NY

Active since October 11, 2006
1245 PARK AVE, C/O UPTOWN PEDIATRICS, NEW YORK CITY, NY 10128(212) 427-0540(212) 534-1086 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. John G Larsen Md NPPES

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

DR. JOHN G LARSEN MD (NPI 1700974169) is an individual pediatric infectious diseases provider in New York City, New York, licensed in New York (129356) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1700974169
Entity TypeIndividualMale
Primary Taxonomy2080P0208X
Provider Legal NameDR. JOHN G LARSENCredential: MD
Location Address1245 PARK AVE, C/O UPTOWN PEDIATRICSNew York City, NY 10128
Mailing Address1245 Park Ave, C/o Uptown PediatricsNew York City, NY 10128 · (212) 427-0540 · Fax (212) 534-1086
Phone(212) 427-0540
Fax(212) 534-1086
Sole ProprietorNo
Enumeration DateOctober 11, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1700974169 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in NY · 129356
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
Also ListedPediatricsTaxonomy 208000000X · License 129356 (NY)

Other Identifiers 1

Medicaid00686035NY

Other Providers at the Same Location NPPES 13

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

MRS. MEGAN ELIZABETH LAITMAN MS, OTR/L
Occupational Therapist
1245 PARK AVE, 14K
NEW YORK, NY 10128
New York County (516) 236-8979
DARPUN SACHDEV MD
Student in an Organized Health Care Education/Training Program
1245 PARK AVE, APT 3G
NEW YORK, NY 10128
New York County (212) 241-1200
DR. OSHER COHEN MD
Student in an Organized Health Care Education/Training Program
1245 PARK AVE, APT. 1C
NEW YORK, NY 10128
New York County (347) 585-5804
VICKIE WU MD
Pediatrics
1245 PARK AVE
NEW YORK, NY 10128
New York County (212) 427-0540
MRS. KARLEE D, SEALOVE PT, MPT, DPT
Physical Therapist (Pediatrics)
1245 PARK AVE, APARTMENT 9J
NEW YORK, NY 10128
New York County (917) 655-1106
DR. JINGJING LI SHERMAN M.D.
Surgery
1245 PARK AVE, APT 2K
NEW YORK, NY 10128
New York County (717) 658-6999
DR. MATTHEW NATHANIEL MIDDLEMAN M.D.
Student in an Organized Health Care Education/Training Program
1245 PARK AVE, APT 12J
NEW YORK, NY 10128
New York County (212) 828-3919
JAIME M MARQUEZ DPT
Physical Therapist
1245 PARK AVE, # 17 B
NEW YORK, NY 10128
New York County (646) 719-1391

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 John Larsen's NPI number?

The NPI number for John Larsen is 1700974169. It was assigned to this individual provider in the NPPES registry on October 11, 2006.

Where is John Larsen located?

John Larsen practices at 1245 Park Ave C/O Uptown Pediatrics, New York City, NY 10128. The listed phone number is (212) 427-0540.

What is John Larsen's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

When was this NPI record last updated?

The NPPES record for John Larsen was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.