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John Dalton, M.D.
NPI 1225013493 · Nephrology Physician · Catonsville, MD
John Dalton, M.D. is a Nephrology Physician provider in Catonsville, MD (NPI 1225013493).
Provider details
- NPI number
- 1225013493
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0030542 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
2w Rolling Crossroads
Suite 205
Catonsville, MD 21228-6209
Phone: (410) 788-8033
Fax: (410) 788-8034
Approximate (ZIP-level) locationGet directions
Mailing address
2w Rolling Crossroads
Catonsville, MD 21228-6209
Registry dates
- Enumerated
- 2005-12-10
- Last updated
- 2012-06-27
Frequently asked questions
- What is John Dalton's NPI number?
- John Dalton's National Provider Identifier (NPI) is 1225013493, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Dalton's specialty?
- John Dalton is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is John Dalton located?
- John Dalton's practice location on file with NPPES is 2w Rolling Crossroads, Catonsville, MD 21228-6209.
- What is John Dalton's phone number?
- The practice phone number listed in the NPPES registry for John Dalton is (410) 788-8033.
- Is John Dalton's NPI active?
- Yes — John Dalton's NPI (1225013493) is active in the NPPES registry as of the last update on 2012-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.