Sabu John & Mary Mallappallil Physician P.C
NPI 1821312083 · Cardiovascular Disease Physician · Brooklyn, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sabu John & Mary Mallappallil Physician P.C is a Cardiovascular Disease Physician organization in Brooklyn, NY (NPI 1821312083).
Provider details
- NPI number
- 1821312083
- Entity type
- Organization
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Sabu John, M.D(917) 407-7898
- License
- 217897 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
16 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
- 2010-03-17
- Last updated
- 2017-04-21
Frequently asked questions
- What is Sabu John & Mary Mallappallil Physician P.C's NPI number?
- Sabu John & Mary Mallappallil Physician P.C's National Provider Identifier (NPI) is 1821312083, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sabu John & Mary Mallappallil Physician P.C?
- Sabu John & Mary Mallappallil Physician P.C is classified in the NPPES registry as Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Sabu John & Mary Mallappallil Physician P.C located?
- Sabu John & Mary Mallappallil Physician P.C's practice location on file with NPPES is 322 Linden Blvd, Brooklyn, NY 11226.
- What is Sabu John & Mary Mallappallil Physician P.C's phone number?
- The practice phone number listed in the NPPES registry for Sabu John & Mary Mallappallil Physician P.C is (718) 282-0801.
- Does Sabu John & Mary Mallappallil Physician P.C accept Medicare?
- Sabu John & Mary Mallappallil Physician P.C 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 Sabu John & Mary Mallappallil Physician P.C?
- The authorized official listed on Sabu John & Mary Mallappallil Physician P.C's NPPES record is Sabu John, M.D. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sabu John & Mary Mallappallil Physician P.C's NPI active?
- Yes — Sabu John & Mary Mallappallil Physician P.C's NPI (1821312083) is active in the NPPES registry as of the last update on 2017-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.