CHRISTIAN A GUIER (MD) – Orthopaedic Surgery Physician, NPI 1679676530
Orthopaedic Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,024 ORTHOPEDIC SURGERY in CA
Provider Addresses for CHRISTIAN A GUIER (MD)
1580 Valencia St Ste 703
San Francisco, CA 941104415
Phone: (415) 917-7004
Fax: (628) 225-4409
Type: Location
1314 ROBBINS ST
SANTA BARBARA, CA 931014729
Phone: (307) 690-9229
Fax: (628) 225-4409
Type: Mailing
510 CASTILLO ST STE 302
SANTA BARBARA, CA 931013406
Phone: (307) 690-9229
Fax: (628) 225-4409
Type: Location
Hhr Ranch Road, Wilson, Teton County, Wyoming, United States
WILSON, WY 830149210
Phone: (307) 733-9228
Type: Location
Jackson Post Office, South West Street, Jackson, Hinds County, Mississippi, 39201, United States
JACKSON, WY 830013129
Phone: (307) 733-9228
Fax: (307) 734-0016
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $162.
Total Amount is formed as General ($162) + Research ($0) + Ownership ($0) = $162.
Last reported payment date: 2023-06-16 • Largest payer in this snapshot: Stryker Corporation ($120).
Total Amount
$162
General + Research + Ownership
Payments
3
Total payment records
General Amount
$162
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Stryker Corporation | $120 |
| Orthofix Medical, 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: 2013-12-23
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 |
|---|---|---|---|---|
| I20131223001281 | I | Orthopedic Surgery | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 18 | 16 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 15 | 15 | $0 |
Insurance plans in this area (ZIP 94110)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ORTHOPEDIC SURGERY | WY | 20610 | Aspiration and/or injection of large joint or joint capsule | 49 | 23 |
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