Active NPI
Janel Lacey Nielsen, D.O.
- Anesthesiology Physician
- Dover, NH
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anesthesiology Physician
- License
- 2253
- Practice address
- 789 Central Ave
Dover, NH 03820-2526 - Phone
- (603) 609-6819
- NPI assigned
- Aug 1, 2007
- Last updated
- Dec 2, 2025
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Anesthesiology Physician | 207L00000X | OTO11501 | PA | |
| Anesthesiology Physician | 207L00000X | 25734 | NH | |
| Anesthesiology Physician | 207L00000X | 2253 | ME | Primary |
| Anesthesiology Physician | 207L00000X | 4063 | IA |
Addresses
Primary practice location
789 Central Ave
Dover, NH 03820-2526
Mailing address
PO Box 412503
Boston, MA 02241-2503
Other practice location 1
15 Hospital Dr
York, ME 03909-1011
Phone (801) 450-4790
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in ME, NH
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Anesthesiology
- Education
- Des Moines University of Osteopathic Medicine and Health Sciences, 2006
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
15 Hospital Dr
York, ME 03909-1011
Phone (207) 363-4321
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 97.93 of 100
- Quality
- 83.31
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2253 | ME | MD | Anesthesiology Physician |
| 25734 | NH | MD | Anesthesiology Physician |
| OTO11501 | PA | MD | Anesthesiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Seacoast Pathology Inc | Current | Accepting new patients | |
| Wentworth Douglass Physician Corporation | Current | Accepting new patients | |
| York Hospital | Current | Accepting new patients | |
| Wentworth Douglass Physician Corporation | Current | Accepting new patients |
Locations
15 Hospital Dr
York, ME 03909
Phone (207) 351-2478
789 Central Ave
Dover, NH 03820
Phone (603) 740-2832
158 Route 108
Ste 100
Somersworth, NH 03878
Phone (603) 609-6189
Organizations & group practices 4
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- General Acute Care Hospital
- York, ME
- NPI 1376528398
-
- Magnetic Resonance Imaging Radiologic Technologist
- Dover, NH
- NPI 1447352430
-
- Clinical Medical Laboratory
- Exeter, NH
- NPI 1154651230
-
- Diagnostic Radiology Physician
- Somersworth, NH
- NPI 1295326494
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- York, ME
- NPI 1376528398
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1185926400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764633600000",
"number": "1477743771",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 412503",
"city": "BOSTON",
"state": "MA",
"postal_code": "022412503"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "789 CENTRAL AVE",
"city": "DOVER",
"state": "NH",
"postal_code": "038202526",
"telephone_number": "603-609-6819"
}
],
"practiceLocations": [
{
"address_1": "15 Hospital Dr",
"address_purpose": "LOCATION",
"city": "York",
"state": "ME",
"postal_code": "039091011",
"country_code": "US",
"telephone_number": "801-450-4790",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "NIELSEN",
"first_name": "JANEL",
"middle_name": "LACEY",
"name_prefix": "Dr.",
"credential": "D.O.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2007-08-01",
"last_updated": "2025-12-02",
"certification_date": "2025-12-02",
"status": "A"
},
"taxonomies": [
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "PA",
"license": "OTO11501",
"primary": false
},
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "NH",
"license": "25734",
"primary": false
},
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "ME",
"license": "2253",
"primary": true
},
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "IA",
"license": "4063",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Dover, NH
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.