Ilya Kleyn, MD
NPI 1851327092 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ilya Kleyn, MD is a Internal Medicine Physician provider in New York, NY (NPI 1851327092).
Provider details
- NPI number
- 1851327092
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 215006 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,658 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 1,087 | $83 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 669 | $139 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 279 | $142 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 249 | $101 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 184 | $69 |
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 237 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,175 | 250 |
| Amlodipine Besylate | 873 | 191 |
| Levothyroxine Sodium | 796 | 159 |
| Losartan Potassium | 643 | 126 |
| Metoprolol Succinate | 642 | 136 |
| Lisinopril | 469 | 91 |
| Apixaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,170 across 45 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-22
- Last updated
- 2024-09-10
- Certified
- 2024-09-10
Frequently asked questions
- What is Ilya Kleyn's NPI number?
- Ilya Kleyn's National Provider Identifier (NPI) is 1851327092, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ilya Kleyn's specialty?
- Ilya Kleyn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ilya Kleyn located?
- Ilya Kleyn's practice location on file with NPPES is 225 Broadway Ste 1420, New York, NY 10007-3771.
- What is Ilya Kleyn's phone number?
- The practice phone number listed in the NPPES registry for Ilya Kleyn is (212) 571-5000.
- Does Ilya Kleyn accept Medicare?
- Ilya Kleyn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ilya Kleyn's NPI active?
- Yes — Ilya Kleyn's NPI (1851327092) is active in the NPPES registry as of the last update on 2024-09-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.