DR. THU THUY TERRI HUYNH (M.D.) – Internal Medicine Physician, NPI 1740343367
Internal Medicine Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
Provider Addresses for DR. THU THUY TERRI HUYNH (M.D.)
801 E MOUNTAIN VIEW ST STE E
HERITAGE VICTORVALLEY MEDICAL GROUP
BARSTOW, CA 923113052
Phone: (760) 256-1777
Fax: (760) 256-7766
Type: Location
15571 BROOKHURST ST
WESTMINSTER, CA 926837554
Phone: (714) 775-3066
Fax: (714) 531-2915
Type: Mailing
12370, Hesperia Road, Victorville, San Bernardino County, California, 92395, United States
SUITE 6
VICTORVILLE, CA 923957719
Phone: (760) 245-4747
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 106 Open Payments records for all available years, with a total value of $2,543.
Total Amount is formed as General ($2,543) + Research ($0) + Ownership ($0) = $2,543.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Amgen Inc. ($686).
Total Amount
$2,543
General + Research + Ownership
Payments
106
Total payment records
General Amount
$2,543
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 |
|---|---|
| Amgen Inc. | $686 |
| ABBVIE INC. | $342 |
| Sumitomo Pharma America, Inc. | $212 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $206 |
| Bayer Healthcare Pharmaceuticals Inc. | $204 |
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: 2007-04-24
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 |
|---|---|---|---|---|
| I20070424000513 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 2,234 | 485 | $0 |
| 99091 | Collection and interpretation of physical parameters stored in computers and/or transmitted by the patient and/or caregiver to qualified health care professional, requiring 30 minutes or more, per 30 days | 1,167 | 211 | $0 |
| 99457 | Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 1,089 | 207 | $0 |
| 99458 | Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | 701 | 183 | $0 |
| 99454 | Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 663 | 147 | $0 |
Insurance plans in this area (ZIP 92311)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice, Osteopathic Manipulative Medicine | CA |
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