Darlene A. Knapp, MD
Anatomic Pathology & Clinical Pathology Physician · Portsmouth, NH
Darlene A. Knapp, MD is an anatomic pathology & clinical pathology physician with a practice address in Portsmouth, New Hampshire, and NPI 1629067731, issued on Oct 20, 2005. Check the license (New Hampshire 11374, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Darlene A. Knapp
- Credential
- MD
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- 11374 NH
Self-reported in NPPES; status is on the state search - Practice location
- 333 Borthwick Avenue, Portsmouth, NH 03801
- Phone
- (603) 334-2037
- Enumerated
- Oct 20, 2005
- Record last updated
- Oct 1, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (603) 433-4910
- Medicaid ID
- 3111890 MA
- Medicare enrollment
- Enrolled (PECOS I20050609000155); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 1987
- Entity
- Type 1 · individual
Also registered at 333 Borthwick Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anwar Abouhamra, M.DStudent in an Organized Health Care Education/Training Program1538959341
- Peter Dourdoufis, DOCardiovascular Disease Physician1528042553
- John Federico, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1356313449
- Wilmer Jones, MDVascular Surgery Physician1487666319
- Jordy Looser, PA-CSurgical Physician Assistant1962449066
- Scott Mithoefer, PA-CSurgical Physician Assistant1578053914
Verify Darlene A. Knapp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 11374Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Lawrence General HospitalLawrence, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in New Hampshire
There are 77 anatomic pathology & clinical pathology physician records in New Hampshire.
Other anatomic pathology & clinical pathology physician records in New Hampshire
- Kevin Anderson, M.D, PH.D.Exeter, NH1356720387
- Suellen Balestra, MDClaremont, NH1295874493
- Frank Benton, MDManchester, NH1740222975
- John Bissonnette, MDManchester, NH1225070477
- Bryce Bobb, DOPortsmouth, NH1457095762
- Alexander Bonica, M.D.Keene, NH1356369680
- Charles Brown, M.D.Berlin, NH1376588616
- Julia Bruce, MDRochester, NH1578550430
- John Bryan, MDManchester, NH1346292208
- Constance Buttlar, M.D.Nashua, NH1487647301
Common questions
What is Darlene A. Knapp, MD's NPI number?
Darlene A. Knapp, MD's National Provider Identifier (NPI) is 1629067731, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Darlene A. Knapp, MD located?
The NPPES record lists a practice address at 333 Borthwick Avenue, Portsmouth, NH, 03801. Phone: (603) 334-2037. Providers update this record themselves, so call before visiting.
How can I verify Darlene A. Knapp, MD's license?
NPPES lists New Hampshire license number 11374, 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.
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.