DR. TIMOTHY AUGUST HARTSHORN (M.D.) – Orthopaedic Surgery Physician, NPI 1043446503
Orthopaedic Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
947 ORTHOPEDIC SURGERY in MA
Provider Addresses for DR. TIMOTHY AUGUST HARTSHORN (M.D.)
145 ROSEMARY ST STE C
NEEDHAM, MA 02494
Phone: (781) 429-7700
Fax: (781) 429-7701
Type: Location
2351, Ocean View Drive, Signal Hill, Los Angeles County, California, 90755, United States
SIGNAL HILL, CA 90755
Phone: (310) 546-3461
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $37.
Total Amount is formed as General ($37) + Research ($0) + Ownership ($0) = $37.
Last reported payment date: 2024-08-20 • Largest payer in this snapshot: Vericel Corporation ($21).
Total Amount
$37
General + Research + Ownership
Payments
2
Total payment records
General Amount
$37
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Vericel Corporation | $21 |
| Bioventus LLC | $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: 2012-08-20
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 |
|---|---|---|---|---|
| I20120820000765 | I | Orthopedic Surgery | MA | 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 |
|---|---|---|---|---|
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 298 | 45 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 202 | 106 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 108 | 87 | $0 |
| 20611 | Aspiration and/or injection of fluid large joint using ultrasound guidance | 62 | 39 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 42 | 42 | $0 |
Insurance plans in this area (ZIP 02494)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Orthopedic Surgery, Family Practice | VA | |
| Physician Assistant | MA | |
| Orthopedic Surgery | PA | |
| - | WY | |
| Orthopedic Surgery | GU | |
| Orthopedic Surgery | MA | |
| - | KS | |
| - | OR | |
| Orthopedic Surgery | VT | |
| - | PA |
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