PHENTON T. HARKER MD – NPI #1629148911
Preventive Medicine

Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings.

Health Care Provider Taxonomy Code for Preventive Medicine

PHENTON HARKER is a physician located in PORTSMOUTH, NH. NPPES has assigned the NPI number 1629148911 to PHENTON HARKER on November 08, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 2083P0901X from the Health Care Provider Taxonomy code set, which is classified as Preventive Medicine, specializing in Public Health & General Preventive Medicine

The NPI profile was last updated on Nov 18, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for PHENTON HARKER below.

NPI Profile for
PHENTON T. HARKER

NPI Number
1629148911
Enumeration Date

(more than 19 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
PHENTON T. HARKER
Credentials
MD
Primary location
25 NEW HAMPSHIRE AVE
SUITE 100
PORTSMOUTH, NH 03801
Phone: (603) 431-2516 Fax: (603) 228-7307
Mailing address
Same as primary location
Sole Proprietor
No
Updated
Certification Date
Nov 18, 2025

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Identifiers

Identifiers for PHENTON HARKER

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

See identifiers
DescriptionIssuerStateIdentifier
otherAETNA INSURANCENH3375424
otherANTHEM INSURANCENH01YP11322NH01
otherCIGNA INSURANCENH4491080
otherGREATWEST HEALTHCARE INS.NH222594672
otherHARVARD PILGRIM INSURANCENHAA75724
otherMARTINS POINT INSURANCENH222594672
otherMVP INSURANCENH4152065
otherPRIVATE HEALTHCARENH222594672
otherTRICARE INSURANCENH222594672
otherUNITED HEALTHCARE INSNH222594672
medicaidNH30206388
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
2083P0901X
- Preventive Medicine / Public Health & General Preventive Medicine (Primary)		 NH 13320
207Q00000X
- Family Medicine		 NH 13320

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
OHIO STATE UNIVERSITY COLLEGE OF MEDICINE - Graduated 2001
Offers Telehealth Services
Yes - Telehealth services allows you to talk to your health care provider using audio/video communications, such as Zoom, without actually going in to the doctor's office
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
PHENTON HARKER is affiliated with the following medical group(s):
  • HOSPITAL
    • PORTSMOUTH REGIONAL HOSPITAL
      333 BORTHWICK AVE
      PORTSMOUTH, NH 03801
  • HOME HEALTH AGENCY
    • AMEDISYS HOME HEALTH
      25 NEW HAMPSHIRE AVE SUITE 270
      PORTSMOUTH, NH 03801

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.