Quick answers
- Does Timothy A. Hartshorn accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy A. Hartshorn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Timothy A. Hartshorn see?
- In 2024, CMS data shows 265 Original Medicare patients and 1,134 services for Timothy A. Hartshorn. This counts Original Medicare only and measures volume, not quality.
- What is Timothy A. Hartshorn's NPI number?
- 1043446503. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Timothy A. Hartshorn, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 265 |
|---|---|
| Services billed to Medicare | 1,134 |
| Different services or procedures | 81 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)292 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)169 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)134 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)48 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)36 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis72%
- Anxiety42%
- Osteoporosis38%
- Depression34%
Hospitals where Timothy A. Hartshorn works
Medicare's Facility Affiliation Data lists Timothy A. Hartshorn at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
- Newton-Wellesley HospitalNewton, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220101
- Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300029
- Southcoast Hospitals GroupFall River, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220074
Practice locations
Addresses where Timothy A. Hartshorn is enrolled with Medicare (CMS data updated October 2, 2026).
- 1151 Robeson St, Suite 101Fall River, MA 02720 (508) 973‑2211
- 145 Rosemary St, Suite JNeedham, MA 02494 (781) 429‑7700
- 300 A Faunce Corner RdNorth Dartmouth, MA 02747 (508) 973‑2211
Group practices
Medicare enrollment lists Timothy A. Hartshorn as a member of these groups (CMS data updated October 2, 2026).
- Synergy Surgicalists LLC25 clinicians in the group
- Orthoboston LLC3 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Fall River
Clinicians with the same Medicare primary specialty in Fall River, MA — not a recommendation.
Other clinicians in Synergy Surgicalists LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043446503 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians