Frank & Grace, Inc.
NPI 1689621203 · Internal Medicine Physician · Upper Marlboro, MD
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frank & Grace, Inc. is a Internal Medicine Physician organization in Upper Marlboro, MD (NPI 1689621203).
Provider details
- NPI number
- 1689621203
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Sisom Osia, President(301) 599-7010
- License
- D0048158 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Other names (DBA / former)
- Doing business as
- Sisom Osia, M.D./ Gateway Medical Center
Registry dates
- Enumerated
- 2006-05-28
- Last updated
- 2010-03-08
Frequently asked questions
- What is Frank & Grace, Inc.'s NPI number?
- Frank & Grace, Inc.'s National Provider Identifier (NPI) is 1689621203, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Frank & Grace, Inc.?
- Frank & Grace, Inc. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frank & Grace, Inc. located?
- Frank & Grace, Inc.'s practice location on file with NPPES is 9628 Marlboro Pike, Upper Marlboro, MD 20772.
- What is Frank & Grace, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Frank & Grace, Inc. is (301) 599-7010.
- Does Frank & Grace, Inc. accept Medicare?
- Frank & Grace, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Frank & Grace, Inc.?
- The authorized official listed on Frank & Grace, Inc.'s NPPES record is Sisom Osia, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Frank & Grace, Inc.'s NPI active?
- Yes — Frank & Grace, Inc.'s NPI (1689621203) is active in the NPPES registry as of the last update on 2010-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.