Santiago Arroyo, M.D.
NPI 1821538497 · Neurology Physician · Charlestown, MA
Santiago Arroyo, M.D. is a Neurology Physician provider in Charlestown, MA (NPI 1821538497).
Provider details
- NPI number
- 1821538497
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0045607 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
Registry dates
- Enumerated
- 2017-03-02
- Last updated
- 2017-03-02
Frequently asked questions
- What is Santiago Arroyo's NPI number?
- Santiago Arroyo's National Provider Identifier (NPI) is 1821538497, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Santiago Arroyo's specialty?
- Santiago Arroyo is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Santiago Arroyo located?
- Santiago Arroyo's practice location on file with NPPES is 28 Constitution Rd, Charlestown, MA 02129-2008.
- What is Santiago Arroyo's phone number?
- The practice phone number listed in the NPPES registry for Santiago Arroyo is (609) 751-4831.
- Is Santiago Arroyo's NPI active?
- Yes — Santiago Arroyo's NPI (1821538497) is active in the NPPES registry as of the last update on 2017-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.