DR. ANDREW WEI CHONG MAK (M.D.) – Hematology & Oncology Physician, NPI 1306227376
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
98 HEMATOLOGY/ONCOLOGY in RI
Provider Addresses for DR. ANDREW WEI CHONG MAK (M.D.)
825 CHALKSTONE AVE
PROVIDENCE, RI 029084728
Phone:
Type: Mailing
1751 WALLACE BLVD
AMARILLO, TX 791061711
Phone: (806) 212-4673
Fax: (806) 212-0057
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 79 Open Payments records for all available years, with a total value of $2,235.
Total Amount is formed as General ($2,235) + Research ($0) + Ownership ($0) = $2,235.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Myriad Genetic Laboratories, Inc. ($218).
Total Amount
$2,235
General + Research + Ownership
Payments
79
Total payment records
General Amount
$2,235
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2022-08-22
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 |
|---|---|---|---|---|
| I20220822002744 | I | Hematology/Oncology | TX | 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 | 148 | 79 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 148 | 41 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 55 | 55 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 22 | 18 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 15 | 15 | $0 |
Insurance plans in this area (ZIP 02908)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TX | |
| Nurse Practitioner | TX | |
| Hematology/Oncology, Internal Medicine | TX | |
| H E M A T O L O G Y/ O N C O L O G Y | TX | |
| H E M A T O L O G Y/ O N C O L O G Y | TX |
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