Mark Alderson, CRNA
NPI 1104204734 · Certified Registered Nurse Anesthetist · Concord, NH
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Alderson, CRNA is a Certified Registered Nurse Anesthetist provider in Concord, NH (NPI 1104204734).
Provider details
- NPI number
- 1104204734
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- 026.0106567 (VT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Nursing Service Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
115 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 37 | $74 |
| Anesthesia for Electroshock Therapy00104 | 30 | $53 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 19 | $72 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 17 | $93 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 12 | $61 |
Typical Medicare-allowed amounts for these services range $53–$93 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (4)
- 1 General StLawrence, MA 01841-2997Phone: (978) 683-4000
- 55 Lake Ave NDepartment of AnesthesiologyWorcester, MA 01655-0002Phone: (508) 334-3271Fax: (508) 856-5911
- 1 Medical Center DrLebanon, NH 03756-0001Phone: (603) 650-5000
- 100 Mcgregor StManchester, NH 03102-3770Phone: (603) 545-9723
Registry dates
- Enumerated
- 2015-05-15
- Last updated
- 2025-04-28
- Certified
- 2025-04-28
Frequently asked questions
- What is Mark Alderson's NPI number?
- Mark Alderson's National Provider Identifier (NPI) is 1104204734, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Alderson's specialty?
- Mark Alderson is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Alderson located?
- Mark Alderson's practice location on file with NPPES is 264 Pleasant St, Concord, NH 03301-2551.
- What is Mark Alderson's phone number?
- The practice phone number listed in the NPPES registry for Mark Alderson is (603) 224-3368.
- Does Mark Alderson accept Medicare?
- Mark Alderson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Alderson's NPI active?
- Yes — Mark Alderson's NPI (1104204734) is active in the NPPES registry as of the last update on 2025-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.