ROBIN F MERCER (PA-C) – Physician Assistant, NPI 1346592227
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
10,570 PHYSICIAN ASSISTANT in CA
Provider Addresses for ROBIN F MERCER (PA-C)
4000 DUBLIN BLVD
#100
DUBLIN, CA 945683113
Phone: (925) 556-7320
Fax: (925) 479-0231
Type: Mailing
200 PORTER DR
SUITE 215
SAN RAMON, CA 945831587
Phone: (925) 362-2166
Fax: (855) 574-3055
Type: Location
300 PASTEUR DR
STANFORD, CA 943052200
Phone: (650) 723-4000
Type: Mailing
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 $86.
Total Amount is formed as General ($86) + Research ($0) + Ownership ($0) = $86.
Last reported payment date: 2024-02-28 • Largest payer in this snapshot: Heron Therapeutics, Inc. ($62).
Total Amount
$86
General + Research + Ownership
Payments
4
Total payment records
General Amount
$86
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-02-28
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Heron Therapeutics, Inc. | $62 |
| Medtronic, Inc. | $24 |
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: 2012-12-03
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 |
|---|---|---|---|---|
| I20121203000473 | I | Physician Assistant | 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 |
|---|---|---|---|---|
| J7318 | Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg | 1,080 | 13 | $0 |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 476 | 39 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 174 | 155 | $0 |
| 27447 | Replacement of knee joint, both sides of knee | 120 | 113 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 98 | 73 | $0 |
Insurance plans in this area (ZIP 94568)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PHYSICIAN ASSISTANT | CA | 27447 | Repair of knee joint | 74 | 70 |
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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