GREGORY JOHN ROBERTSON (MD) – Emergency Medicine Physician, NPI 1659329233
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for GREGORY JOHN ROBERTSON (MD)
877 Oak Park Blvd
Pismo Beach, CA 934493292
Phone: (805) 474-8450
Type: Location
217 W Central Ave Ste G
Lompoc, CA 934362830
Phone: (805) 735-4292
Type: Location
5920 West Mall
Atascadero, CA 934224232
Phone: (805) 466-0676
Type: Location
1102 E Clark Ave Ste 120A
Santa Maria, CA 934555175
Phone: (805) 332-8185
Type: Location
1992 Old Mission Dr Ste 140
Solvang, CA 934632302
Phone: (805) 614-5690
Type: Location
2271 S Depot St
Santa Maria, CA 934551216
Phone: (805) 922-0561
Type: Location
877 OAK PARK BLVD
PISMO BEACH, CA 934493292
Phone: (805) 474-8450
Fax: (805) 474-8454
Type: Mailing
Las Tablas Rd/Hospital, 1100, Las Tablas Road, Templeton, San Luis Obispo County, California, 93465, United States
TEMPLETON, CA 934659704
Phone: (805) 434-3500
Type: Location
Templeton, Eden Township, Carroll County, Iowa, United States
TEMPLETON, CA 934650087
Phone:
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 $194.
Total Amount is formed as General ($194) + Research ($0) + Ownership ($0) = $194.
Last reported payment date: 2024-11-05 • Largest payer in this snapshot: Sumitomo Pharma America, Inc. ($125).
Total Amount
$194
General + Research + Ownership
Payments
4
Total payment records
General Amount
$194
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Sumitomo Pharma America, Inc. | $125 |
| Axsome Therapeutics, Inc. | $33 |
| Noven Therapeutics, LLC | $21 |
| Lilly USA, LLC | $15 |
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: 2004-07-20
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 |
|---|---|---|---|---|
| I20040720001495 | I | Emergency 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 94 | 93 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 87 | 81 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 29 | 29 | $0 |
| 99291 | Critical care, first 30-74 minutes | 19 | 18 | $0 |
Insurance plans in this area (ZIP 93449)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | NJ | |
| - | CA | |
| - | CA | |
| - | IN | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA |
Reviews
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