Phenton Travis Harker, MD
Public Health & General Preventive Medicine Physician · Portsmouth, NH
Phenton Travis Harker, MD is a public health & general preventive medicine physician with a practice address in Portsmouth, New Hampshire, and NPI 1629148911, issued on Nov 8, 2006. Check the license (New Hampshire 13320, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Phenton Travis Harker
- Credential
- MD
- Primary taxonomy
- Public Health & General Preventive Medicine Physician 2083P0901X
- License number
- 13320 NH
Self-reported in NPPES; status is on the state search - Practice location
- 25 New Hampshire Ave, Portsmouth, NH 03801
- Phone
- (603) 431-2516
- Enumerated
- Nov 8, 2006
- Record last updated
- Nov 18, 2025
- Fax
- (603) 228-7307
- Medicaid ID
- 30206388 NH
- Medicare enrollment
- Enrolled (PECOS I20070106000036); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
4 nearest public health & general preventive medicine physician records → All 5 in New Hampshire → Look up another NPI →
Also registered at 25 New Hampshire Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yohanna Garcia Hernandez, NPFamily Nurse Practitioner1508267345
- Paris Khavari, MDInternal Medicine Physician1790889434
- Katharina Lilly, MDFamily Medicine Physician1891992772
- Tracy Meattey, PAMedical Physician Assistant1942372206
- Susan Murray, MDFamily Medicine Physician1831288125
- Karen Palmer, DOFamily Medicine Physician1326029380
Verify Phenton Travis Harker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 13320Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average public health & general preventive medicine physician in 2024
3,066 Medicare Part D claims for 322 beneficiaries, against an average of 820 among the 336 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 95 claims were for opioids.
Most prescribed
- Atorvastatin Calcium239 claims
- Lisinopril171 claims
- Amlodipine Besylate147 claims
- Levothyroxine Sodium100 claims
- Rosuvastatin Calcium96 claims
- Tamsulosin Hcl77 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Appledore Medical Group IncPortsmouth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Public Health & General Preventive Medicine Physician providers in New Hampshire
There are 5 public health & general preventive medicine physician records in New Hampshire.
All 5 in New Hampshire → Every provider in Portsmouth → Public Health & General Preventive Medicine Physician nationwide →
The 4 public health & general preventive medicine physician records with the nearest ZIP codes
- Carolyn Murray, MD, MPHLebanon, NH 037561528179439
- Doris Lotz, M.D.Concord, NH 033011679907158
- Natacha Sochat, M.D.Weare, NH 032811730248592
- Richard Siemens, J.D., M.D., M.P.H.Manchester, NH 031041598898124
Common questions
What is Phenton Travis Harker, MD's NPI number?
Phenton Travis Harker, MD's National Provider Identifier (NPI) is 1629148911, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Phenton Travis Harker, MD located?
The NPPES record lists a practice address at 25 New Hampshire Ave, Portsmouth, NH, 03801. Phone: (603) 431-2516. Providers update this record themselves, so call before visiting.
How can I verify Phenton Travis Harker, MD's license?
NPPES lists New Hampshire license number 13320, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Phenton Travis Harker, MD prescribe under Medicare Part D?
In 2024, Phenton Travis Harker, MD had 3,066 Medicare Part D claims for 322 beneficiaries; the average among public health & general preventive medicine physician prescribers was 820. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.