Callum Dewar
NPI 1225665953 · General Practice Physician · Bethesda, MD
Callum Dewar is a General Practice Physician provider in Bethesda, MD (NPI 1225665953).
Provider details
- NPI number
- 1225665953
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$332 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-24
- Last updated
- 2023-08-08
- Certified
- 2023-08-08
Frequently asked questions
- What is Callum Dewar's NPI number?
- Callum Dewar's National Provider Identifier (NPI) is 1225665953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Callum Dewar's specialty?
- Callum Dewar is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Callum Dewar located?
- Callum Dewar's practice location on file with NPPES is 8901 Rockville Pike, Bethesda, MD 20889-0001.
- What is Callum Dewar's phone number?
- The practice phone number listed in the NPPES registry for Callum Dewar is (301) 295-4000.
- Is Callum Dewar's NPI active?
- Yes — Callum Dewar's NPI (1225665953) is active in the NPPES registry as of the last update on 2023-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.