Howard Schlossberg, M.D.
NPI 1023005691 · Hematology & Oncology Physician · Clifton Park, NY
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Howard Schlossberg, M.D. is a Hematology & Oncology Physician provider in Clifton Park, NY (NPI 1023005691).
Provider details
- NPI number
- 1023005691
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 236530 (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
7,827 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,131 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 985 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 627 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 383 | $86 |
| Gammaglobulin (immune System Protein) Measurement82784 | 344 | $9 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 247 | $14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 157 | 44 |
| Apixabanbrand: Eliquis | 96 | 19 |
| Acyclovir | 80 | 12 |
| Lenalidomide | 79 | — |
| Warfarin Sodium | 74 | 13 |
| Dexamethasone | 65 | 12 |
| Ibrutinibbrand: Imbruvica | 64 | — |
| Hydroxyurea |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-29
- Last updated
- 2019-03-20
Frequently asked questions
- What is Howard Schlossberg's NPI number?
- Howard Schlossberg's National Provider Identifier (NPI) is 1023005691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Howard Schlossberg's specialty?
- Howard Schlossberg is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Howard Schlossberg located?
- Howard Schlossberg's practice location on file with NPPES is 3 Crossing Blvd Ste 1, Clifton Park, NY 12065-4172.
- What is Howard Schlossberg's phone number?
- The practice phone number listed in the NPPES registry for Howard Schlossberg is (518) 831-4434.
- Does Howard Schlossberg accept Medicare?
- Howard Schlossberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Howard Schlossberg's NPI active?
- Yes — Howard Schlossberg's NPI (1023005691) is active in the NPPES registry as of the last update on 2019-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.