Alanna Tieman
NPI 1255835500 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alanna Tieman is a Internal Medicine Physician provider in New York, NY (NPI 1255835500).
Provider details
- NPI number
- 1255835500
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 308537 (NY)
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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
45 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 | 28 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 17 | $102 |
Typical Medicare-allowed amounts for these services range $6–$102 (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.
Practice location
Mailing address
Additional practice locations (1)
- 100 E 77th StNew York, NY 10075-1850Phone: (212) 434-2422
Registry dates
- Enumerated
- 2018-03-21
- Last updated
- 2025-03-19
- Certified
- 2025-03-19
Frequently asked questions
- What is Alanna Tieman's NPI number?
- Alanna Tieman's National Provider Identifier (NPI) is 1255835500, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alanna Tieman's specialty?
- Alanna Tieman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alanna Tieman located?
- Alanna Tieman's practice location on file with NPPES is 35 E 21st St Fl 7, New York, NY 10010-6212.
- What is Alanna Tieman's phone number?
- The practice phone number listed in the NPPES registry for Alanna Tieman is (888) 663-6331.
- Does Alanna Tieman accept Medicare?
- Alanna Tieman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alanna Tieman's NPI active?
- Yes — Alanna Tieman's NPI (1255835500) is active in the NPPES registry as of the last update on 2025-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.