Quick answers
- Does Alida Hayner Buchan accept Medicare assignment?
- Yes. Medicare's clinician data says Alida Hayner Buchan 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 Alida Hayner Buchan see?
- In 2024, CMS data shows 2,332 Original Medicare patients and 6,793 services for Alida Hayner Buchan. This counts Original Medicare only and measures volume, not quality.
- What is Alida Hayner Buchan's NPI number?
- 1659361293. 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 Alida Hayner Buchan, 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 | 2,332 |
|---|---|
| Services billed to Medicare | 6,793 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)2,358 services
- Protein measurement, serum (84165)966 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)667 services
- Special stained specimen slides to examine tissue, initial procedure (88342)457 services
- Immunologic analysis technique on serum (immunofixation) (86334)419 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 pressure72%
- High cholesterol72%
- Arthritis48%
- Ischemic heart disease32%
- Anxiety29%
- Diabetes26%
Hospitals where Alida Hayner Buchan works
Medicare's Facility Affiliation Data lists Alida Hayner Buchan 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.
- Baystate Medical CenterSpringfield, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220077
- Berkshire Medical CenterPittsfield, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220046
- Fairview HospitalGreat Barrington, MA · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 221302
- North Adams Regional Hospital CorporationNorth Adams, MA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 221304
- Southwestern Vermont Medical CenterBennington, VT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 470012
Practice locations
Addresses where Alida Hayner Buchan is enrolled with Medicare (CMS data updated October 2, 2026).
- 29 Lewis AveGreat Barrington, MA 01230 (413) 528‑0790
- 725 N StPittsfield, MA 01201 (413) 447‑2000
Group practices
Medicare enrollment lists Alida Hayner Buchan as a member of this group (CMS data updated October 2, 2026).
- Western Massachusetts Pathology Services, PC5 clinicians in the group
Specialties
- Pathologyprimary
- Hematologyalso
Other pathologists in Great Barrington
Clinicians with the same Medicare primary specialty in Great Barrington, MA — not a recommendation.
Other clinicians in Western Massachusetts Pathology Services, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659361293 |
| 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