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MARY NELSON CRNA
NPI 1699489443
Nurse Anesthetist, Certified Registered in New London, NH

Active since January 06, 2023PECOS EnrolledAccepts Medicare Assignment
273 COUNTY RD, NEW LONDON, NH 03257(603) 536-2911(603) 640-1228 Get Directions Write a Review

NPPES record last updated: May 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 7, 2026, Apr 13, 2026, Sep 15, 2025 and 2 more (5 updates tracked since 2023).

About Mary Nelson Crna NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY NELSON CRNA (NPI 1699489443) is an individual nurse anesthetist, certified registered in New London, New Hampshire, licensed in New Hampshire (075749-23) and active in the NPI registry since January 2023. She is enrolled in Medicare PECOS, is affiliated with Elliot Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1699489443
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameMARY NELSONCredential: CRNA
Location Address273 COUNTY RDNew London, NH 03257-5736
Mailing Address140 Commonwealth AveChestnut Hill, MA 02467-3800 · (617) 552-2756
Phone(603) 536-2911
Fax(603) 640-1228
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJanuary 6, 2023
Last NPPES UpdateMay 7, 20265 updates tracked since enumeration
NPPES CertifiedMay 7, 2026
✔ NPI 1699489443 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in NH · 075749-23
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
273 COUNTY RD, New London, NH 03257
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11 Elliot Way Ste 200Manchester, NH 03103-3502 · Phone (603) 663-2315
Location 2140 Commonwealth AveChestnut Hill, MA 02467-3858 · Phone (617) 552-2756

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Nelson Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID143719823
PECOS Enrollment IDI20251031002375
Eligible to Order & Refer✔ Part B Labs & Imaging– Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Mary Nelson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The New London Hospital Association, Inc.
Same address
Ambulance
273 COUNTY RD
New London, NH 03257
  • Reassigned Medicare billing, New Hampshire enrollment
  • Also billed through NPI 1831200583 (New Hampshire)
  • 141 clinicians in this Medicare group
NPI 1639610611 (603) 526-2911
Amoskeag Anesthesia, PLLC
42 mi
Anesthesiology
1 ELLIOT WAY, SUITE 200
Manchester, NH 03103
  • Reassigned Medicare billing, New Hampshire enrollment
  • 278 clinicians in this Medicare group
NPI 1104883511 (603) 663-2315

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Elliot Hospital

Acute Care Hospitals · Manchester, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300012
Location1 Elliot WayManchester, NH 03103 · Hillsborough County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03257 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$132.09 typical visit price
range $57.75 – $174.26
Typical copayment $33.02 (range $14.43 – $43.56)
Most-billed visit code 99204
Established Patient
$71.85 typical visit price
range $18.70 – $142.15
Typical copayment $17.96 (range $4.67 – $35.53)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SHERRI DAWSON HODGDON RPH
Pharmacist
273 COUNTY RD
NEW LONDON, NH 03257
Merrimack County (603) 526-5261
SEAN BEARS MD
Surgery
273 COUNTY RD
NEW LONDON, NH 03257
Merrimack County (603) 526-5544
PINEAL BEKERE
Family Medicine
273 COUNTY RD
NEW LONDON, NH 03257
Merrimack County (603) 526-2911
MRS. KYLEIGH GUY APRN
Nurse Practitioner (Family)
273 COUNTY RD
NEW LONDON, NH 03257
Merrimack County (603) 526-5544
JEFFREY POWELL MD
Internal Medicine
273 COUNTY RD
NEW LONDON, NH 03257
Merrimack County (603) 526-5544
BRIAN JOSEPH FRENKIEWICH DO
Family Medicine
273 COUNTY RD
NEW LONDON, NH 03257
Merrimack County (603) 526-5544
PAUL ASENJO CRNA
Nurse Anesthetist, Certified Registered
273 COUNTY RD
NEW LONDON, NH 03257
Merrimack County (603) 526-2911
MRS. LISA MARIE TEMPLETON RPH
Pharmacist
273 COUNTY RD
NEW LONDON, NH 03257
Merrimack County (603) 526-5233

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Nelson's NPI number?

The NPI number for Mary Nelson is 1699489443. It was assigned to this individual provider in the NPPES registry on January 6, 2023.

Where is Mary Nelson located?

Mary Nelson practices at 273 County Rd, New London, NH 03257. The listed phone number is (603) 536-2911.

What is Mary Nelson's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Mary Nelson enrolled in Medicare?

Yes. Mary Nelson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Mary Nelson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Nelson reassigns Medicare benefits to 2 organizations: The New London Hospital Association, Inc. (New London, NH) and Amoskeag Anesthesia, PLLC (Manchester, NH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Nelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mary Nelson accept?

Health plans from WellSense Health Plan list Mary Nelson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mary Nelson affiliated with any hospitals?

According to CMS data, Mary Nelson is affiliated with Elliot Hospital.

When was this NPI record last updated?

The NPPES record for Mary Nelson was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.