Kaiser Islam, MD
NPI 1689668311 · Internal Medicine Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kaiser Islam, MD is a Internal Medicine Physician provider in Brooklyn, NY (NPI 1689668311).
Provider details
- NPI number
- 1689668311
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 208681 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
154 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $113 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 66 | $76 |
Typical Medicare-allowed amounts for these services range $76–$113 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 81 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 215 | 95 |
| Amlodipine Besylate | 108 | 53 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 96 | 31 |
| Ergocalciferol (vitamin D2)brand: Vitamin D2 | 82 | 35 |
| Rosuvastatin Calcium | 76 | 40 |
| Metformin Hcl | 57 | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Kaiser Islam's NPI number?
- Kaiser Islam's National Provider Identifier (NPI) is 1689668311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kaiser Islam's specialty?
- Kaiser Islam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kaiser Islam located?
- Kaiser Islam's practice location on file with NPPES is 2171 Nostrand Ave, Brooklyn, NY 11210-3025.
- What is Kaiser Islam's phone number?
- The practice phone number listed in the NPPES registry for Kaiser Islam is (718) 758-8920.
- Does Kaiser Islam accept Medicare?
- Kaiser Islam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kaiser Islam's NPI active?
- Yes — Kaiser Islam's NPI (1689668311) 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.