1. Home
  2. Directory
  3. New Jersey
  4. Princeton
  5. Internal Medicine
  6. NPI Profile

MARK ALLEN SCHAEFFER M.D.
NPI 1194866087
Internal Medicine in Princeton, NJ

Active since February 12, 2007
800 BUNN DR, SUITE 302, PRINCETON, NJ 08540(609) 921-1680(609) 921-1438 Get Directions Write a Review

NPPES record last updated: March 11, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mark Allen Schaeffer M.d. NPPES

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

MARK ALLEN SCHAEFFER M.D. (NPI 1194866087) is an individual internal medicine provider in Princeton, New Jersey, licensed in New Jersey (25MA04680500) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1194866087
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARK ALLEN SCHAEFFERCredential: M.D.
Location Address800 BUNN DR, SUITE 302Princeton, NJ 08540-1968
Mailing Address800 Bunn Dr, Suite 302Princeton, NJ 08540-1968 · (609) 921-1680 · Fax (609) 921-1438
Phone(609) 921-1680
Fax(609) 921-1438
Sole ProprietorNo
Enumeration DateFebruary 12, 2007
Last NPPES UpdateMarch 11, 2012
✔ NPI 1194866087 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NJ · 25MA04680500
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
800 BUNN DR, Princeton, NJ 08540
Open in Google Maps ↗

Other Identifiers 4

Medicare UPIND20074NJ
Other271656004NJ · Tax Id # Princeton Premier Medicine, Llc
Medicare ID-Type Unspecified885917NJ
Other223457805NJ · Tax Id Number

Other Providers at the Same Location NPPES 16

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

DR. LEIF EDWARD BAUMBACH I DPT
Clinic/Center (Physical Therapy)
800 BUNN DR, # 102
PRINCETON, NJ 08540
Mercer County (609) 683-1010
FRANCES ERTEL P.T.
Physical Therapist
800 BUNN DR, SUITE 102
PRINCETON, NJ 08540
Mercer County (609) 683-1010
RACHEL CUOMO RD
Dietitian, Registered
800 BUNN DR, 302
PRINCETON, NJ 08540
Mercer County (609) 851-9866
PRINCETON PREMIER MEDICINE LLC
Internal Medicine
800 BUNN DR, SUITE 302
PRINCETON, NJ 08540
Mercer County (609) 921-1680
SUSAN KASSLER-TAUB
Social Worker (Clinical)
800 BUNN DR, SUITE 205
PRINCETON, NJ 08540
Mercer County (609) 921-1994
MR. TYLER D JOYCE PT, CNP
Physical Therapist
800 BUNN DR
PRINCETON, NJ 08540
Mercer County (609) 683-1010
ALISON JEAN LIEDTKA PT, DPT
Physical Therapist
800 BUNN DR
PRINCETON, NJ 08540
Mercer County (609) 683-1010
THE PRINCETON CENTER FOR DERMATOLOGY, LLC
Dermatology
800 BUNN DR, SUITE 201
PRINCETON, NJ 08540
Mercer County (609) 924-1033

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 Mark Schaeffer's NPI number?

The NPI number for Mark Schaeffer is 1194866087. It was assigned to this individual provider in the NPPES registry on February 12, 2007.

Where is Mark Schaeffer located?

Mark Schaeffer practices at 800 Bunn Dr Suite 302, Princeton, NJ 08540. The listed phone number is (609) 921-1680.

What is Mark Schaeffer's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Mark Schaeffer was last updated on March 11, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.