DR. ANDREW ON-SHING CHOW (MD) – Internal Medicine Physician, NPI 1376583245
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
766 HOSPITALIST in CT
Provider Addresses for DR. ANDREW ON-SHING CHOW (MD)
20 YORK STREET, CB-2041
NEW HAVEN, CT 065103220
Phone: (203) 688-4748
Fax: (203) 688-4740
Type: Mailing
1309 Lees Chapel Rd
Greensboro, NC 274552601
Phone: (336) 286-5505
Fax: (336) 286-5583
Type: Location
1021 DARRINGTON DR STE 101
CARY, NC 275138158
Phone: (984) 333-2741
Fax: (919) 378-9114
Type: Mailing
1309 LEES CHAPEL RD
GREENSBORO, NC 274552601
Phone: (336) 286-5505
Fax: (336) 288-2900
Type: Location
420 W Mountain St
Kernersville, NC 272842534
Phone: (336) 993-1618
Fax: (336) 993-5512
Type: Location
3333 Silas Creek Pkwy
Winston Salem, NC 271033013
Phone: (336) 718-8383
Fax: (336) 718-9622
Type: Location
1000 CENTRE GREEN WAY STE 270
CARY, NC 275132282
Phone: (919) 439-8108
Fax: (919) 439-8108
Type: Mailing
420 W MOUNTAIN ST
KERNERSVILLE, NC 272842534
Phone: (336) 993-1618
Fax: (336) 993-5512
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 112 Open Payments records for all available years, with a total value of $1,934.
Total Amount is formed as General ($1,934) + Research ($0) + Ownership ($0) = $1,934.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: PFIZER INC. ($584).
Total Amount
$1,934
General + Research + Ownership
Payments
112
Total payment records
General Amount
$1,934
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
| Company | Amount |
|---|---|
| PFIZER INC. | $584 |
| Lilly USA, LLC | $210 |
| AstraZeneca Pharmaceuticals LP | $190 |
| ABBVIE INC. | $161 |
| Novo Nordisk Inc | $127 |
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: 2021-07-30
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20041202000578 | I | Internal Medicine | CT | TBD |
| I20210730000810 | I | Internal Medicine | NC | 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 | 578 | 215 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 134 | 35 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 111 | 111 | $0 |
| G0444 | Annual depression screening, 5 to 15 minutes | 84 | 84 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 77 | 58 | $0 |
Insurance plans in this area (ZIP 06510)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | CT | |
| - | CT | |
| - | CT | |
| Internal Medicine | NJ | |
| Hospitalist, Internal Medicine | CT | |
| - | CT | |
| - | CT | |
| Internal Medicine | CT | |
| Nurse Practitioner | CT | |
| Physician Assistant | CT |
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