Daniel Slack, MD
NPI 1023512068 · Hospitalist Physician · New York, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Slack, MD is a Hospitalist Physician provider in New York, NY (NPI 1023512068).
Provider details
- NPI number
- 1023512068
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 309235 (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
8 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
87 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 24 | $18 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 19 | $9 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $189 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 14 | $187 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 13 | $143 |
Typical Medicare-allowed amounts for these services range $9–$189 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 36 | 16 |
| Metformin Hclbrand: Metformin Hcl Er | 36 | 15 |
| Atorvastatin Calcium | 31 | 11 |
| Semaglutidebrand: Ozempic | 28 | 11 |
| Insulin Aspartbrand: Novolog Flexpen | 23 | — |
| Dulaglutidebrand: Trulicity | 20 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-23
- Last updated
- 2021-05-12
- Certified
- 2021-05-12
Frequently asked questions
- What is Daniel Slack's NPI number?
- Daniel Slack's National Provider Identifier (NPI) is 1023512068, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Slack's specialty?
- Daniel Slack is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Slack located?
- Daniel Slack's practice location on file with NPPES is 1 Gustave L Levy Pl, New York, NY 10029-6504.
- What is Daniel Slack's phone number?
- The practice phone number listed in the NPPES registry for Daniel Slack is (212) 241-1653.
- Does Daniel Slack accept Medicare?
- Daniel Slack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Slack's NPI active?
- Yes — Daniel Slack's NPI (1023512068) is active in the NPPES registry as of the last update on 2021-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.