Nishan Tchekmedyian, MD
NPI 1235450305 · Hematology & Oncology Physician · Huntington Beach, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nishan Tchekmedyian, MD is a Hematology & Oncology Physician provider in Huntington Beach, CA (NPI 1235450305).
Provider details
- NPI number
- 1235450305
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A137047 (CA)
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
16 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
651 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 300 | $156 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 157 | $106 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 53 | $195 |
| Advance Care Planning, First 30 Minutes99497 | 34 | $82 |
| 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 | 30 | $18 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dexamethasone | 38 | 17 |
| Prednisone | 33 | 18 |
| Abiraterone Acetate | 26 | — |
| Osimertinib Mesylatebrand: Tagrisso | 23 | — |
| Prochlorperazine Maleate | 23 | 12 |
| Enzalutamidebrand: Xtandi | 20 | — |
| Ondansetron Hcl | 20 | 11 |
| Apixaban |
Practice location
Mailing address
Additional practice locations (1)
- 1000 FivepointIrvine, CA 92618-2377Phone: (949) 671-4673Fax: (949) 671-4329
Registry dates
- Enumerated
- 2010-06-11
- Last updated
- 2024-05-30
- Certified
- 2024-05-30
Frequently asked questions
- What is Nishan Tchekmedyian's NPI number?
- Nishan Tchekmedyian's National Provider Identifier (NPI) is 1235450305, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nishan Tchekmedyian's specialty?
- Nishan Tchekmedyian is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Nishan Tchekmedyian located?
- Nishan Tchekmedyian's practice location on file with NPPES is 2100 Main St Ste 300, Huntington Beach, CA 92648-2489.
- What is Nishan Tchekmedyian's phone number?
- The practice phone number listed in the NPPES registry for Nishan Tchekmedyian is (714) 252-9415.
- Does Nishan Tchekmedyian accept Medicare?
- Nishan Tchekmedyian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nishan Tchekmedyian's NPI active?
- Yes — Nishan Tchekmedyian's NPI (1235450305) is active in the NPPES registry as of the last update on 2024-05-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.