DR. RONN MARK JOHNSON (PH.D.) – Clinical Psychologist, NPI 1699986000
Clinical Psychologist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,434 CLINICAL PSYCHOLOGIST in CA
Provider Addresses for DR. RONN MARK JOHNSON (PH.D.)
1305 Northcrest Dr Ste 2
Crescent City, CA 955312322
Phone: (541) 661-6479
Fax: (541) 412-7087
Type: Location
550, H Street, Crescent City, Del Norte County, California, 95531, United States
CRESCENT CITY, CA 955313736
Phone: (541) 661-6479
Type: Location
Brookings Post Office, 5th Street, Brookings, Brookings Township, Brookings County, South Dakota, 57007, United States
BROOKINGS, OR 974150064
Phone: (541) 661-6479
Type: Mailing
603 HEMLOCK ST STE 2C-3
BROOKINGS, OR 974159424
Phone: (541) 661-6479
Fax: (541) 412-7087
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
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Open Payments (CMS)
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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: 2020-06-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20200601001616 | I | Clinical Psychologist | CA | TBD |
| I20200601002271 | I | Clinical Psychologist | OR | 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 |
|---|---|---|---|---|
| 90837 | Psychotherapy, 1 hour | 702 | 36 | $0 |
| 90785 | Psychiatric services complicated by communication factor | 580 | 21 | $0 |
| 90791 | Psychiatric diagnostic evaluation | 19 | 18 | $0 |
Insurance plans in this area (ZIP 95531)
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