Mark Khaykin, MD
NPI 1134216617 · Internal Medicine Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Khaykin, MD is a Internal Medicine Physician provider in Brooklyn, NY (NPI 1134216617).
Provider details
- NPI number
- 1134216617
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 232910 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 161 | 48 |
| Losartan Potassium | 142 | 39 |
| Metformin Hcl | 115 | 31 |
| Empagliflozinbrand: Jardiance | 100 | 18 |
| Amlodipine Besylate | 91 | 25 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 87 | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-06
- Last updated
- 2019-06-13
Frequently asked questions
- What is Mark Khaykin's NPI number?
- Mark Khaykin's National Provider Identifier (NPI) is 1134216617, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Khaykin's specialty?
- Mark Khaykin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Khaykin located?
- Mark Khaykin's practice location on file with NPPES is 451 Clarkson Ave, Brooklyn, NY 11203-2054.
- What is Mark Khaykin's phone number?
- The practice phone number listed in the NPPES registry for Mark Khaykin is (718) 245-3192.
- Does Mark Khaykin accept Medicare?
- Mark Khaykin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Khaykin's NPI active?
- Yes — Mark Khaykin's NPI (1134216617) is active in the NPPES registry as of the last update on 2019-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.