MARK CHAI (M.D.) – Physical Medicine & Rehabilitation Physician, NPI 1912947193
Physical Medicine & Rehabilitation Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
589 PHYSICAL MEDICINE AND REHABILITATION in NJ
Provider Addresses for MARK CHAI (M.D.)
208 SHUTE FARM ROAD
CLARKSBORO, NJ 08020
Phone: (610) 477-9796
Type: Mailing
101 HADDON AVE
CAMDEN, NJ 081031468
Phone: (856) 342-2040
Fax: (856) 968-8311
Type: Location
Commerce Drive, Wyomissing, Berks County, Pennsylvania, 19610, United States
WYOMISSING, PA 196103335
Phone: (610) 372-8044
Fax: (484) 334-7026
Type: Mailing
Papermill Road, Wyomissing, Berks County, Pennsylvania, 19610, United States
WYOMISSING, PA 196101065
Phone: (484) 628-2778
Fax: (484) 628-2688
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: 2022-08-25
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 |
|---|---|---|---|---|
| I20080801000315 | I | Physical Medicine And Rehabilitation | PA | TBD |
| I20220825001695 | I | Physical Medicine And Rehabilitation | NJ | 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 |
|---|---|---|---|---|
| J0585 | Injection, onabotulinumtoxina, 1 unit | 7,800 | 12 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 162 | 122 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 128 | 127 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 118 | 117 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 60 | 46 | $0 |
Insurance plans in this area (ZIP 08020)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physical Medicine And Rehabilitation | NJ | |
| Physical Medicine And Rehabilitation | PA | |
| Physician Assistant | PA | |
| Physical Medicine And Rehabilitation | NJ | |
| Interventional Pain Management, Anesthesiology | NJ | |
| - | NJ | |
| Physical Medicine And Rehabilitation | NJ | |
| Physical Medicine And Rehabilitation | NJ | |
| Physical Medicine And Rehabilitation | PA | |
| Physical Medicine And Rehabilitation | PA |
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