DR. HELEN KENT CHEW (M.D.) – Hematology & Oncology Physician, NPI 1801870142
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
550 MEDICAL ONCOLOGY in CA
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Provider Addresses for DR. HELEN KENT CHEW (M.D.)
3235, Magpie Street, Davis, Yolo County, California, 95616, United States
DAVIS, CA 956167507
Phone: (916) 734-3772
Type: Mailing
UC Davis Comprehensive Cancer Center, 2279, 45th Street, Sacramento, Sacramento County, California, 95817, United States
SACRAMENTO, CA 958172229
Phone: (916) 734-5959
Fax: (916) 703-5265
Type: Location
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: 2008-12-09
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 |
|---|---|---|---|---|
| I20081209000077 | I | Medical 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 242 | 137 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 73 | 21 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 59 | 49 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 49 | 27 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 26 | 26 | $0 |
Insurance plans in this area (ZIP 95616)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | NY | |
| - | PA | |
| - | CA | |
| Certified Registered Nurse Anesthetist (Crna) | CA | |
| Physician Assistant | IL | |
| Internal Medicine, Hospice/Palliative Care | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| - | CA |
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