DR. TIMOTHY SCOTT JOHNSTON (M.D.) – Family Medicine Physician, NPI 1528097847
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,008 OBSTETRICS/GYNECOLOGY in CA
Provider Addresses for DR. TIMOTHY SCOTT JOHNSTON (M.D.)
PO BOX 2526
MERCED, CA 953440526
Phone: (209) 349-8459
Fax: (209) 580-4138
Type: Mailing
3170 Collins Dr Ste B
Merced, CA 953483164
Phone: (209) 233-3840
Fax: (209) 354-4607
Type: Location
Merced Post Office, West 18th Street, Merced, Merced County, California, 95340, United States
MERCED, CA 953443768
Phone: (209) 723-3704
Fax: (209) 723-0272
Type: Mailing
G Street, Merced County, California, United States
MERCED, CA 953400978
Phone: (209) 349-8459
Fax: (209) 580-4138
Type: Location
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: 2024-10-16 • Largest payer in this snapshot: Hologic Sales and Service, LLC ($28).
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
2024-10-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Hologic Sales and Service, LLC | $28 |
| Ultragenyx Pharmaceutical Inc. | $24 |
| Novo Nordisk Inc | $19 |
| PFIZER INC. | $16 |
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: 2004-09-13
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 |
|---|---|---|---|---|
| I20040913000562 | I | Family Practice | 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 | 2,769 | 967 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,204 | 675 | $0 |
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 854 | 242 | $0 |
| 77085 | Dxa bone density measurement of hip, pelvis, spine including spine fracture assessment | 564 | 564 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 538 | 195 | $0 |
Insurance plans in this area (ZIP 95344)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | CA | 73110 | X-ray of wrist, minimum of 3 views | 44 | 43 |
| FAMILY MEDICINE | CA | 73562 | X-ray of knee, 3 views | 109 | 87 |
| FAMILY MEDICINE | CA | 83036 | Hemoglobin A1C level | 19 | 19 |
| FAMILY MEDICINE | CA | 90670 | Pneumococcal vaccine for injection into muscle | 18 | 18 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | CA | |
| O T O L A R Y N G O L O G Y | CA | |
| Family Practice, Emergency Medicine | CA | |
| Gastroenterology, Internal Medicine | CA | |
| Family Practice | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA |
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