Natasha Saiyed, M.D.
Surgery · Portsmouth, NH
At a glance
333 Borthwick Ave Ste 305, Portsmouth, NH 03801-7128
Published activity: Removal of skin lesions · Removal of tissue · Skin biopsy. View counts and coverage
NPPES record updated Nov 16, 2023. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
333 Borthwick Ave Ste 305Portsmouth, NH 03801-7128
Additional reported practice locations
44 Birch St Ste 209Derry, NH 030382752
Phone: 6034213688 11 Whitehall Rd
Rochester, NH 038673226
Phone: 6033307914
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2013
- CMS specialties
- General Surgery
Reported hospital affiliations
- Frisbie Memorial Hospital Rochester, NH
- Huggins Hospital Wolfeboro, NH
- Portsmouth Regional Hospital Portsmouth, NH
- Wentworth-Douglass Hospital Dover, NH
- York Hospital York, ME
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Removal of skin lesions | 46 |
| Removal of tissue | 1007 |
| Skin biopsy | 11 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $173.42 |
Reporting companies
| Company | Amount |
|---|---|
| MIMEDX GROUP, INC. | $78.30 |
| SMITH+NEPHEW, INC. | $37.73 |
| URGO MEDICAL NORTH AMERICA, LLC | $29.29 |
| ORGANOGENESIS INC. | $28.10 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Surgery
- Taxonomy code
- 208600000X
- Enumeration date
- Apr 1, 2013
- Record updated
- Nov 16, 2023
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
208600000X · Primary
License reported: 19214 NH
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
333 Borthwick Ave Ste 305Portsmouth, NH 03801-7128
- Phone
- (603) 433-6994
Mailing address
345 HERITAGE AVEUNIT 541
PORTSMOUTH, NH 038019995
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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