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PHENTON TRAVIS HARKER MD
NPI 1629148911
Preventive Medicine - Public Health & General Preventive Medicine in Portsmouth, NH

Active since November 08, 2006PECOS EnrolledAccepts Medicare Assignment
25 NEW HAMPSHIRE AVE, SUITE 100, PORTSMOUTH, NH 03801(603) 431-2516(603) 228-7307 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 18, 2025, Sep 11, 2025 (2 updates tracked since 2025).

About Phenton Travis Harker Md NPPES

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

PHENTON TRAVIS HARKER MD (NPI 1629148911) is an individual public health & general preventive medicine provider in Portsmouth, New Hampshire, licensed in New Hampshire (13320) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with York Hospital, and is a graduate of Ohio State University College Of Medicine (2001).

NPPES Registry Identity

NPI1629148911
Entity TypeIndividualMale
Primary Taxonomy2083P0901X
Provider Legal NamePHENTON TRAVIS HARKERCredential: MD
Location Address25 NEW HAMPSHIRE AVE, SUITE 100Portsmouth, NH 03801
Mailing Address25 New Hampshire Ave, Suite 100Portsmouth, NH 03801 · (603) 431-2516 · Fax (603) 228-7307
Phone(603) 431-2516
Fax(603) 228-7307
Sole ProprietorNo
Medical School CMSOhio State University College Of MedicineGraduated 2001
Enumeration DateNovember 8, 2006
Last NPPES UpdateNovember 18, 20252 updates tracked since enumeration
NPPES CertifiedNovember 18, 2025
✔ NPI 1629148911 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPreventive Medicine · Public Health & General Preventive MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2083P0901X
License✔ Licensed in NH · 13320
Definition
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.
Also ListedFamily MedicineTaxonomy 207Q00000X · License 13320 (NH)
25 NEW HAMPSHIRE AVE, Portsmouth, NH 03801
Open in Google Maps ↗

Other Identifiers 11

Other222594672NH · United Healthcare Ins
Other222594672NH · Greatwest Healthcare Ins.
Other4491080NH · Cigna Insurance
Other01YP11322NH01NH · Anthem Insurance
Other4152065NH · Mvp Insurance
Other3375424NH · Aetna Insurance
Other222594672NH · Tricare Insurance
Medicaid30206388NH
Other222594672NH · Martins Point Insurance
Other222594672NH · Private Healthcare
OtherAA75724NH · Harvard Pilgrim Insurance

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Harvard Pilgrim Health Care, Taro Health.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

Phenton Travis Harker Md 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 ID5496755969
PECOS Enrollment IDI20070106000036
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 Reassignment

Medicare enrollment records show Phenton Harker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Appledore Medical Group Dba Woodbury Family Practice
1.9 mi
Family Medicine
101 SHATTUCK WAY, SUITE 6
Newington, NH 03801
  • Reassigned Medicare billing, New Hampshire enrollment
  • Medicare enrollment name: Appledore Medical Group Inc
  • 185 clinicians in this Medicare group
NPI 1225232184 (603) 430-0060

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

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
145 services145 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
118 services90 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
116 services94 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
68 services45 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
20 services17 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
15 services15 patients

Hospital Affiliations CMS Care Compare 4

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

York Hospital

Acute Care Hospitals · York, ME
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number200020
Location15 Hospital DriveYork, ME 03909 · York County
Emergency services Birthing friendly

Wentworth-Douglass Hospital

Acute Care Hospitals · Dover, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300018
Location789 Central AveDover, NH 03820 · Strafford County
Emergency services Birthing friendly

Exeter Hospital Inc

Acute Care Hospitals · Exeter, NH
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300023
Location5 Alumni DriveExeter, NH 03833 · Rockingham County
Emergency services Birthing friendly

Portsmouth Regional Hospital

Acute Care Hospitals · Portsmouth, NH
3/5 CMS rating
OwnershipProprietary
CMS Certification Number300029
Location333 Borthwick AvePortsmouth, NH 03801 · Rockingham County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03801 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
$89.14 typical visit price
range $57.75 – $174.26
Typical copayment $22.28 (range $14.43 – $43.56)
Most-billed visit code 99203
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 10

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

BEACON HOSPICE, LLC
Hospice Care, Community Based
25 NEW HAMPSHIRE AVE, SUITE 272
PORTSMOUTH, NH 03801
Rockingham County (603) 433-2480
OCCUPATIONAL HEALTH SERVICES OF PORTSMOUTH REGIONAL HOSPITAL, LLC
Clinic/Center (Occupational Medicine)
25 NEW HAMPSHIRE AVE, SUITE 105
PORTSMOUTH, NH 03801
Rockingham County (603) 430-9675
KAREN L PALMER DO
Family Medicine
25 NEW HAMPSHIRE AVE, SUITE 100
PORTSMOUTH, NH 03801
Rockingham County (603) 431-2516
AMEDISYS NEW HAMPSHIRE, L.L.C.
Home Health
25 NEW HAMPSHIRE AVE, SUITE 270
PORTSMOUTH, NH 03801
Rockingham County (603) 436-0815
YOHANNA ADELBA GARCIA HERNANDEZ NP
Nurse Practitioner (Family)
25 NEW HAMPSHIRE AVE, SUITE 100
PORTSMOUTH, NH 03801
Rockingham County (603) 431-2516
AMEDISYS NEW HAMPSHIRE, L.L.C.
Home Health
25 NEW HAMPSHIRE AVE, SUITE 270
PORTSMOUTH, NH 03801
Rockingham County (603) 436-0815
PARIS KHAVARI MD
Internal Medicine
25 NEW HAMPSHIRE AVE, SUITE 100
PORTSMOUTH, NH 03801
Rockingham County (603) 431-2516
SUSAN A MURRAY MD
Family Medicine
25 NEW HAMPSHIRE AVE, SUITE 100
PORTSMOUTH, NH 03801
Rockingham County (603) 431-2516

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 Phenton Harker's NPI number?

The NPI number for Phenton Harker is 1629148911. It was assigned to this individual provider in the NPPES registry on November 8, 2006.

Where is Phenton Harker located?

Phenton Harker practices at 25 New Hampshire Ave Suite 100, Portsmouth, NH 03801. The listed phone number is (603) 431-2516.

What is Phenton Harker's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Public Health & General Preventive Medicine, with taxonomy code 2083P0901X.

Is Phenton Harker enrolled in Medicare?

Yes. Phenton Harker 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 organization bills Medicare for Phenton Harker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Phenton Harker reassigns Medicare benefits to Appledore Medical Group Dba Woodbury Family Practice (Newington, NH). The 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 Phenton Harker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Phenton Harker accept?

Health plans from Ambetter from NH Healthy Families, Harvard Pilgrim Health Care and Taro Health list Phenton Harker 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 Phenton Harker affiliated with any hospitals?

According to CMS data, Phenton Harker is affiliated with York Hospital, Wentworth-Douglass Hospital, Exeter Hospital Inc and Portsmouth Regional Hospital.

When was this NPI record last updated?

The NPPES record for Phenton Harker was last updated on November 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.