Tjark Schliep, M.D.
NPI 1649291808 · Infectious Disease Physician · New York, NY
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tjark Schliep, M.D. is a Infectious Disease Physician provider in New York, NY (NPI 1649291808).
Provider details
- NPI number
- 1649291808
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 000887 (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
39 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 39 | $143 |
Typical Medicare-allowed amounts for these services range $143–$143 (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 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 93 | 12 |
| Atorvastatin Calcium | 78 | 17 |
| Emtricitab/Rilpiviri/Tenof Alabrand: Odefsey | 66 | — |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 48 | — |
| Metformin Hcl | 43 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 39 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$64 across 3 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
- 2006-07-22
- Last updated
- 2010-10-15
Frequently asked questions
- What is Tjark Schliep's NPI number?
- Tjark Schliep's National Provider Identifier (NPI) is 1649291808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tjark Schliep's specialty?
- Tjark Schliep is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Tjark Schliep located?
- Tjark Schliep's practice location on file with NPPES is 506 Malcolm X Blvd, New York, NY 10037-1802.
- What is Tjark Schliep's phone number?
- The practice phone number listed in the NPPES registry for Tjark Schliep is (212) 939-2740.
- Does Tjark Schliep accept Medicare?
- Tjark Schliep is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tjark Schliep's NPI active?
- Yes — Tjark Schliep's NPI (1649291808) is active in the NPPES registry as of the last update on 2010-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.