ANNE YEE LIU (M.D.) – Allergy & Immunology Physician, NPI 1821044314
Allergy & Immunology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
521 ALLERGY/IMMUNOLOGY in CA
Provider Addresses for ANNE YEE LIU (M.D.)
725 WELCH RD
PALO ALTO, CA 943041601
Phone: (650) 497-8000
Type: Mailing
730 Welch Rd
1st floor, Immunology/Allergy Clinic
Palo Alto, CA 943041503
Phone: (650) 723-0290
Fax: (650) 497-8839
Type: Location
269 Campus Dr
CCSR 3215, MC 5366
Stanford, CA 943055101
Phone: (650) 498-6073
Fax: (650) 498-5560
Type: Location
Lutticken's Deli, 269, Campus Drive, Stanford, Santa Clara County, California, 94305-6015, United States
CCSR 3215, MC 5366
STANFORD, CA 943055101
Phone: (650) 498-6073
Fax: (650) 498-5560
Type: Mailing
730, Welch Road, Stanford, Palo Alto, Santa Clara County, California, 94305-6015, United States
1ST FLOOR, IMMUNOLOGY/ALLERGY CLINIC
PALO ALTO, CA 943041503
Phone: (650) 723-0290
Fax: (650) 497-8839
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $5,426.
Total Amount is formed as General ($5,426) + Research ($0) + Ownership ($0) = $5,426.
Last reported payment date: 2024-07-20 • Largest payer in this snapshot: Pharming Healthcare, Inc. ($5,258).
Total Amount
$5,426
General + Research + Ownership
Payments
4
Total payment records
General Amount
$5,426
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Pharming Healthcare, Inc. | $5,258 |
| Grifols USA, LLC | $167 |
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: 2012-12-28
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 |
|---|---|---|---|---|
| I20121228000288 | I | Allergy/Immunology | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 107 | 41 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 67 | 32 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 37 | 28 | $0 |
| Q3014 | Telehealth originating site facility fee | 29 | 16 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 27 | 19 | $0 |
Insurance plans in this area (ZIP 94304)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| - | CA | |
| - | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Hematology, Medical Oncology | NY | |
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| Neuropsychiatry, Neurology | CA |
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