DR. NERSES SIMON TCHEKMEDYIAN (M.D.) – Hematology & Oncology Physician, NPI 1821032129
Hematology & Oncology Physician
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NPPES metrics only — not quality of care.
1,531 HEMATOLOGY/ONCOLOGY in CA
Provider Addresses for DR. NERSES SIMON TCHEKMEDYIAN (M.D.)
2100 Main St Ste 300
Huntington Beach, CA 926482489
Phone: (714) 252-9415
Fax: (714) 963-8407
Type: Location
1043 Elm Ave Ste 104
Long Beach, CA 908133244
Phone: (562) 590-0345
Fax: (562) 437-8139
Type: Location
1043, Elm Avenue, Imperial Beach, San Diego County, California, 91932, United States
STE 104
LONG BEACH, CA 908133271
Phone: (562) 590-0345
Fax: (562) 437-8139
Type: Mailing
16300 SAND CANYON AVE STE 207
IRVINE, CA 926183712
Phone: (949) 333-7580
Fax: (949) 333-7599
Type: Location
1000 FIVEPOINT
IRVINE, CA 926182377
Phone: (949) 671-4673
Fax: (949) 671-4329
Type: Location
PO BOX 512185
LOS ANGELES, CA 900510185
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-04-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040417000570 | I | Hematology/Oncology | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 1,020 | 11 | $0 |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | 230 | 17 | $0 |
| J2405 | Injection, ondansetron hydrochloride, per 1 mg | 224 | 14 | $0 |
| 96375 | Injection of additional new drug or substance into vein | 77 | 34 | $0 |
| 96372 | Injection of drug or substance under skin or into muscle | 67 | 46 | $0 |
Insurance plans in this area (ZIP 92648)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Nurse Practitioner | CA | |
| Cardiovascular Disease (Cardiology) | CA | |
| Hematology/Oncology, Internal Medicine | CA | |
| - | CA | |
| Nurse Practitioner | CA | |
| Certified Registered Nurse Anesthetist (Crna) | CA | |
| Endocrinology, Internal Medicine | CA | |
| General Surgery | CA | |
| Certified Registered Nurse Anesthetist (Crna) | PA |
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