What is Ronald Shumacher's NPI number?

Ronald Shumacher's National Provider Identifier (NPI) is 1447593736, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ronald Shumacher's specialty?

Ronald Shumacher is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Ronald Shumacher located?

Ronald Shumacher's practice location on file with NPPES is 800 King Farm Blvd, Rockville, MD 20850-5979.

What is Ronald Shumacher's phone number?

The practice phone number listed in the NPPES registry for Ronald Shumacher is (240) 683-5331.

Is Ronald Shumacher's NPI active?

Yes — Ronald Shumacher's NPI (1447593736) is active in the NPPES registry as of the last update on 2013-04-04.

IndividualActive

Ronald Shumacher, M.D.

NPI 1447593736 · Internal Medicine Physician · Rockville, MD

Ronald Shumacher, M.D. is a Internal Medicine Physician provider in Rockville, MD (NPI 1447593736).

Provider details

NPI number: 1447593736
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: D41931 (MD)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense D41931 (MD)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense MD13770 (RI)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense DR-51153 (CO)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 01070468A (IN)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 04-35627 (KS)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 4301099867 (MI)

Profile Score

Detailed profile(78/100 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
1 documented practice location

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

800 King Farm Blvd

Suite 600

Rockville, MD 20850-5979

Phone: (240) 683-5331

Street-level locationGet directions

More MD providers

Mailing address

112 Fox Trail Ter

Gaithersburg, MD 20878-2683

Enumerated: 2013-04-04
Last updated: 2013-04-04

Frequently asked questions

What is Ronald Shumacher's NPI number?: Ronald Shumacher's National Provider Identifier (NPI) is 1447593736, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Ronald Shumacher's specialty?: Ronald Shumacher is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Ronald Shumacher located?: Ronald Shumacher's practice location on file with NPPES is 800 King Farm Blvd, Rockville, MD 20850-5979.
What is Ronald Shumacher's phone number?: The practice phone number listed in the NPPES registry for Ronald Shumacher is (240) 683-5331.
Is Ronald Shumacher's NPI active?: Yes — Ronald Shumacher's NPI (1447593736) is active in the NPPES registry as of the last update on 2013-04-04.

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