John Klement, MD, PHD
NPI 1679223192 · Hematology & Oncology Physician · New York, NY
John Klement, MD, PHD is a Hematology & Oncology Physician provider in New York, NY (NPI 1679223192).
Provider details
- NPI number
- 1679223192
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 12 |
| Amlodipine Besylate | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-03-27
- Last updated
- 2024-12-27
- Certified
- 2024-12-27
Frequently asked questions
- What is John Klement's NPI number?
- John Klement's National Provider Identifier (NPI) is 1679223192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Klement's specialty?
- John Klement is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Klement located?
- John Klement's practice location on file with NPPES is 1275 York Ave, New York, NY 10065-6007.
- What is John Klement's phone number?
- The practice phone number listed in the NPPES registry for John Klement is (646) 632-9223.
- Is John Klement's NPI active?
- Yes — John Klement's NPI (1679223192) is active in the NPPES registry as of the last update on 2024-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.