Quick answers
- Does Christopher N. Dainiak accept Medicare assignment?
- Yes. Medicare's clinician data says Christopher N. Dainiak 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 Christopher N. Dainiak see?
- In 2024, CMS data shows 384 Original Medicare patients and 658 services for Christopher N. Dainiak. This counts Original Medicare only and measures volume, not quality.
- What is Christopher N. Dainiak's NPI number?
- 1710942354. 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 Christopher N. Dainiak, 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 | 384 |
|---|---|
| Services billed to Medicare | 658 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)146 services
- Biopsy of large bowel using a flexible endoscope (45380)100 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)95 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)92 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)76 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 cholesterol75%
- High blood pressure64%
- Arthritis41%
- Anxiety28%
- Diabetes22%
- Depression22%
Hospitals where Christopher N. Dainiak works
Medicare's Facility Affiliation Data lists Christopher N. Dainiak 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.
- Androscoggin Valley HospitalBerlin, NH · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 301310
- Catholic Medical CenterManchester, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300034
- Elliot HospitalManchester, NH · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 300012
- Parkland Medical CenterDerry, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300017
- Upper Connecticut Valley HospitalColebrook, NH · Critical Access Hospital · Emergency services: listed by Medicare · CCN 301300
Practice locations
Addresses where Christopher N. Dainiak is enrolled with Medicare (CMS data updated October 2, 2026).
- 59 Page Hill RdBerlin, NH 03570 (603) 752‑2200
- 7 Page Hill RdBerlin, NH 03570 (603) 752‑2300
- 9 Washington Pl, Suite 201Bedford, NH 03110 (603) 367‑3064
Group practices
Medicare enrollment lists Christopher N. Dainiak as a member of this group (CMS data updated October 2, 2026).
- Androscoggin Valley Hospital Inc62 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in New Hampshire
Clinicians with the same Medicare primary specialty in New Hampshire — not a recommendation.
Other clinicians in Androscoggin Valley Hospital Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Connecticut School Of Medicine |
| Graduation year | 1998 (28 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) | 1710942354 |
| 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