IndividualActive
Roy Castle, R.PH., P.D.
NPI 1891815718 · Pharmacist · Rockville, MD
Roy Castle, R.PH., P.D. is a Pharmacist provider in Rockville, MD (NPI 1891815718).
Provider details
- NPI number
- 1891815718
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- R.PH., P.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 08969 (MD)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
5600 Fishers Ln
Hfd-13
Rockville, MD 20857-0001
Phone: (240) 453-6689
Fax: (240) 453-6685
Street-level locationGet directions
Mailing address
19035 Festival Dr
Boyds, MD 20841-4001
Registry dates
- Enumerated
- 2007-04-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Roy Castle's NPI number?
- Roy Castle's National Provider Identifier (NPI) is 1891815718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roy Castle's specialty?
- Roy Castle is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Roy Castle located?
- Roy Castle's practice location on file with NPPES is 5600 Fishers Ln, Rockville, MD 20857-0001.
- What is Roy Castle's phone number?
- The practice phone number listed in the NPPES registry for Roy Castle is (240) 453-6689.
- Is Roy Castle's NPI active?
- Yes — Roy Castle's NPI (1891815718) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.