FREDERICA S. LOFQUIST (M.D.) – Obstetrics & Gynecology Physician, NPI 1750458873
Obstetrics & Gynecology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for FREDERICA S. LOFQUIST (M.D.)
834 Sheridan St
Port Townsend, WA 983682443
Phone: (360) 344-0403
Fax: (360) 412-6478
Type: Location
3838 CALIFORNIA ST RM 316
SAN FRANCISCO, CA 941181505
Phone: (415) 379-9600
Fax: (415) 379-9823
Type: Mailing
3838, California Street, Jordan Park, San Francisco, California, 94118-1316, United States
316
SAN FRANCISCO, CA 941181522
Phone: (415) 379-9600
Fax: (415) 379-9823
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 11 Open Payments records for all available years, with a total value of $4,931.
Total Amount is formed as General ($4,931) + Research ($0) + Ownership ($0) = $4,931.
Last reported payment date: 2023-07-17 • Largest payer in this snapshot: Organon LLC ($4,931).
Total Amount
$4,931
General + Research + Ownership
Payments
11
Total payment records
General Amount
$4,931
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-07-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Organon LLC | $4,931 |
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: 2024-03-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20040225000804 | I | Obstetrics/Gynecology | CA | TBD |
| I20231017003562 | I | Obstetrics/Gynecology | OR | TBD |
| I20240312004159 | I | Obstetrics/Gynecology | WA | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 98368)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | CA | |
| - | CA | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Internal Medicine | CA |
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