PING CHANG (MD) – Internal Medicine Physician, NPI 1124091194
Internal Medicine Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,193 HOSPITALIST in MO
Provider Addresses for PING CHANG (MD)
1101 W Liberty St
Farmington, MO 636401921
Phone: (573) 705-1272
Type: Location
12101, Woodcrest Executive Drive, Creve Coeur, Saint Louis County, Missouri, 63141, United States
SUITE 210
SAINT LOUIS, MO 631415047
Phone: (314) 317-0600
Fax: (314) 317-0606
Type: Mailing
South First Capitol Drive, Saint Charles, Saint Charles County, Missouri, 63303, United States
SAINT CHARLES, MO 633012844
Phone: (314) 317-0600
Fax: (314) 317-0606
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: 2003-11-03
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 |
|---|---|---|---|---|
| I20031103000203 | I | Hospitalist | MO | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 443 | 224 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 172 | 107 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 148 | 145 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 64 | 64 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 63 | 63 | $0 |
Insurance plans in this area (ZIP 63640)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | MO | |
| Internal Medicine, Endocrinology | MO | |
| Internal Medicine | IL | |
| Internal Medicine | MO | |
| - | MO | |
| Internal Medicine | MO | |
| Family Practice, Hospitalist | MO | |
| Internal Medicine | PA | |
| Hospitalist, Internal Medicine | MO | |
| Internal Medicine | MO |
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