MR. JOHN HARNEY M.D.
NPI 1235272121
Internal Medicine in Baltimore, MD

Active since February 14, 2007
4000 ANNAPOLIS RD, SUITE 202, BALTIMORE, MD 21227(410) 636-9999(410) 636-6152 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mr. John Harney M.d. NPPES

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

MR. JOHN HARNEY M.D. (NPI 1235272121) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D0021716) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1235272121
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMR. JOHN HARNEYCredential: M.D.
Location Address4000 ANNAPOLIS RD, SUITE 202Baltimore, MD 21227-3600
Mailing Address4000 Annapolis Rd, Suite 202Baltimore, MD 21227-3600 · (410) 636-9999 · Fax (410) 636-6152
Fax(410) 636-6152
Sole ProprietorYes
Enumeration DateFebruary 14, 2007
Last NPPES UpdateMarch 7, 2023
NPI 1235272121 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MD · D0021716
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.
4000 ANNAPOLIS RD, Baltimore, MD 21227

Other Identifiers 12

Other02238011United Healthcare Ma
OtherM10796Cds Number
OtherP1024ACoventry
Other07273Amerigroup
Other505807Us Health
OtherD0021716License Number
OtherE2600001Blue Choice
Other5093453Aetna
Other1378470RFirst Health
Other813596Mamsi Opt Chs Mdipa
Other000157156 0400181United Healthcare
OtherK697HABcbs

Other Providers at the Same Location NPPES 7

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

Preventive Medicine (Public Health & General Preventive Medicine)
4000 ANNAPOLIS RD, SUITE 201
BALTIMORE, MD 21227
Dentist (General Practice)
4000 ANNAPOLIS RD, SUITE 101
BALTIMORE, MD 21227
Dentist (General Practice)
4000 ANNAPOLIS RD
BALTIMORE, MD 21227
Dentist (General Practice)
4000 ANNAPOLIS RD
BALTIMORE, MD 21227
Otolaryngology
4000 ANNAPOLIS RD, SUITE # 102
BALTIMORE, MD 21227
Physician Assistant
4000 ANNAPOLIS RD, SUITE 105
BALTIMORE, MD 21227
Pediatrics
4000 ANNAPOLIS RD, SUITE 203
BALTIMORE, MD 21227

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 Harney's NPI number?

The NPI number for John Harney is 1235272121. It was assigned to this individual provider in the NPPES registry on February 14, 2007.

Where is John Harney located?

John Harney practices at 4000 Annapolis Rd Suite 202, Baltimore, MD 21227. The listed phone number is (410) 636-9999.

What is John Harney'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 John Harney was last updated on March 7, 2023. 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.