What is Jonathan Isen's NPI number?

Jonathan Isen's National Provider Identifier (NPI) is 1972946911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jonathan Isen's specialty?

Jonathan Isen is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).

Where is Jonathan Isen located?

Jonathan Isen's practice location on file with NPPES is 301 Russell Ave, Gaithersburg, MD 20877-2807.

What is Jonathan Isen's phone number?

The practice phone number listed in the NPPES registry for Jonathan Isen is (301) 216-4248.

Is Jonathan Isen's NPI active?

Yes — Jonathan Isen's NPI (1972946911) is active in the NPPES registry as of the last update on 2019-03-07.

IndividualActive

Jonathan Isen, OTR/L

NPI 1972946911 · Occupational Therapist · Gaithersburg, MD

Jonathan Isen, OTR/L is a Occupational Therapist provider in Gaithersburg, MD (NPI 1972946911).

Provider details

NPI number: 1972946911
Entity type: Individual
Primary specialty: Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Credential: OTR/L
Sex: Male
Sole proprietor: No
License: 06808 (MD)

Specialties & taxonomies

Occupational TherapistPrimary225X00000XLicense 06808 (MD)
Respiratory, Developmental, Rehabilitative and Restorative Service Providers

Profile Score

Detailed profile(82/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
13 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
2 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

301 Russell Ave

Gaithersburg, MD 20877-2807

Phone: (301) 216-4248

Street-level locationGet directions

More MD providers

Mailing address

13816 Ivywood Ln

Silver Spring, MD 20904-5470

Additional practice locations (1)

710 Roeder Rd
1000
Silver Spring, MD 20910-4449
Phone: (301) 613-7134

Enumerated: 2013-04-09
Last updated: 2019-03-07

Frequently asked questions

What is Jonathan Isen's NPI number?: Jonathan Isen's National Provider Identifier (NPI) is 1972946911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Jonathan Isen's specialty?: Jonathan Isen is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
Where is Jonathan Isen located?: Jonathan Isen's practice location on file with NPPES is 301 Russell Ave, Gaithersburg, MD 20877-2807.
What is Jonathan Isen's phone number?: The practice phone number listed in the NPPES registry for Jonathan Isen is (301) 216-4248.
Is Jonathan Isen's NPI active?: Yes — Jonathan Isen's NPI (1972946911) is active in the NPPES registry as of the last update on 2019-03-07.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.