DR. SHARAFALI Y DIWAN (M.D.) – Infectious Disease Physician, NPI 1114927290
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
674 INFECTIOUS DISEASE in TX
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Provider Addresses for DR. SHARAFALI Y DIWAN (M.D.)
Houston Methodist Willowbrook Hospital, 18220, Tomball Parkway, Houston, Harris County, Texas, 77070, United States
SUITE 230
HOUSTON, TX 770704347
Phone: (832) 604-0005
Fax: (832) 604-0103
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 93 Open Payments records for all available years, with a total value of $1,751.
Total Amount is formed as General ($1,751) + Research ($0) + Ownership ($0) = $1,751.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Gilead Sciences, Inc. ($748).
Total Amount
$1,751
General + Research + Ownership
Payments
93
Total payment records
General Amount
$1,751
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 |
|---|---|
| Gilead Sciences, Inc. | $748 |
| Astellas Pharma US Inc | $425 |
| Shionogi Inc | $249 |
| Merck Sharp & Dohme LLC | $164 |
| EMD Serono, Inc. | $43 |
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: 2011-05-31
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 |
|---|---|---|---|---|
| I20110531000677 | I | Infectious Disease | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 2,938 | 317 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 328 | 63 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 317 | 290 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 60 | 26 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 32 | 22 | $0 |
Insurance plans in this area (ZIP 77070)
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