DR. CHARLOTTE X ZHANG (M.D.) – Hospitalist Physician, NPI 1306844642
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,302 HOSPITALIST in CA
Provider Addresses for DR. CHARLOTTE X ZHANG (M.D.)
1200 B Gale Wilson Blvd
Fairfield, CA 945333552
Phone: (707) 646-5080
Type: Location
10500 Quivira Rd
Overland Park, KS 662152306
Phone: (913) 541-5000
Type: Location
10540, Marty Street, Overland Park, Johnson County, Kansas, 66212, United States
SUITE 100
OVERLAND PARK, KS 662122551
Phone: (913) 660-1616
Fax: (913) 660-1664
Type: Mailing
Overland Park Regional Medical Center, 10500, Quivira Road, Overland Park, Johnson County, Kansas, 66215, United States
OVERLAND PARK, KS 662152306
Phone: (913) 541-5000
Type: Location
8700 BEVERLY BLVD
WEST HOLLYWOOD, CA 900481804
Phone: (310) 423-5000
Type: Location
4140 W 190TH ST
TORRANCE, CA 905045513
Phone:
Type: Mailing
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: 2018-09-20
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 |
|---|---|---|---|---|
| I20180920003411 | I | Hospitalist | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 93 | 49 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 79 | 46 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 76 | 74 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 34 | 34 | $0 |
Insurance plans in this area (ZIP 94533)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P A T H O L O G Y | NY | |
| A N E S T H E S I O L O G Y | NV | |
| - | CA | |
| - | CA | |
| - | CA | |
| H O S P I T A L I S T | CA | |
| Infectious Disease | CA | |
| Plastic And Reconstructive Surgery | CA | |
| Physical Therapist In Private Practice | CA | |
| Hospitalist, Internal Medicine | CA |
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