1. Home
  2. Directory
  3. Maryland
  4. Rockville
  5. Internal Medicine
  6. NPI Profile

MICHAEL AARON GNATT MD
NPI 1255392866
Internal Medicine in Rockville, MD

Active since March 31, 2006
14955 SHADY GROVE RD, SUITE 100, ROCKVILLE, MD 20850(301) 990-3193(301) 990-3199 Get Directions Write a Review

NPPES record last updated: May 9, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Michael Aaron Gnatt Md NPPES

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

MICHAEL AARON GNATT MD (NPI 1255392866) is an individual internal medicine provider in Rockville, Maryland, licensed in Maryland (D0066915) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1255392866
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL AARON GNATTCredential: MD
Location Address14955 SHADY GROVE RD, SUITE 100Rockville, MD 20850-8700
Mailing Address3100 Wyman Park DrBaltimore, MD 21211-2803
Phone(301) 990-3193
Fax(301) 990-3199
Sole ProprietorNo
Enumeration DateMarch 31, 2006
Last NPPES UpdateMay 9, 2013
✔ NPI 1255392866 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MD · D0066915✔ Licensed in NY · 204857
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.
14955 SHADY GROVE RD, Rockville, MD 20850
Open in Google Maps ↗

Other Identifiers 2

Medicare PIN211NMD
Medicare UPINB92855NY

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
139 services60 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
95 services53 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
16 services15 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
12 services12 patients

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. SHEILA GAY LEVIN MD
Internal Medicine (Gastroenterology)
14955 SHADY GROVE RD, SUITE 150
ROCKVILLE, MD 20850
Montgomery County (301) 340-3252
DR. CHIRAG PATEL MD, DDS
Dentist (Oral and Maxillofacial Surgery)
14955 SHADY GROVE RD, SUITE 330
ROCKVILLE, MD 20850
Montgomery County (301) 340-0101
JOHNS HOPKINS COMMUNITY PHYSICIANS
Internal Medicine
14955 SHADY GROVE RD
ROCKVILLE, MD 20850
Montgomery County (410) 933-0000
DR. FABIANA STEREN OFFIT DDS
Dentist
14955 SHADY GROVE RD, SUITE 360
ROCKVILLE, MD 20850
Montgomery County (301) 610-7724
STERN, GREENBAUM, KRANTZ AND SCHWARTZ
Dentist
14955 SHADY GROVE RD, SUITE 200
ROCKVILLE, MD 20850
Montgomery County (301) 610-9909
LAWRENCE ALAN BASSIN MD
Internal Medicine (Gastroenterology)
14955 SHADY GROVE RD, SUITE 150
ROCKVILLE, MD 20850
Montgomery County (301) 340-3252
ALAN N SCHULMAN MD
Internal Medicine (Gastroenterology)
14955 SHADY GROVE RD, SUITE 150
ROCKVILLE, MD 20850
Montgomery County (301) 340-3252
MICHAEL S. MORRIS M.D., LLC
Otolaryngology
14955 SHADY GROVE RD, SUITE 240
ROCKVILLE, MD 20850
Montgomery County (301) 279-7522

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 Michael Gnatt's NPI number?

The NPI number for Michael Gnatt is 1255392866. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Where is Michael Gnatt located?

Michael Gnatt practices at 14955 Shady Grove Rd Suite 100, Rockville, MD 20850. The listed phone number is (301) 990-3193.

What is Michael Gnatt'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 Michael Gnatt was last updated on May 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.