Diana L. O'Neil
Physician Assistant · Concord, NH
Diana L. O'Neil is a physician assistant with a practice address in Concord, New Hampshire, and NPI 1851718639, issued on Mar 18, 2014. Check the license (New Hampshire 1244, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana L. O'Neil
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 1244 NH
PA4932 MA
Self-reported in NPPES; status is on the state search - Practice location
- 246 Pleasant St Bldg West, Concord, NH 03301
- Phone
- (603) 224-6070
- Enumerated
- Mar 18, 2014
- Record last updated
- Oct 7, 2024
- Fax
- (603) 227-7555
- Medicare enrollment
- Enrolled (PECOS I20170306000035); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 947 in New Hampshire → Look up another NPI →
Also registered at 246 Pleasant St Bldg West
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ioan Badau, M.D.Internal Medicine Physician1104842392
- Michelle Ciarlo, M.D.Obstetrics & Gynecology Physician1740690163
- Jonathan Eddinger, M.D.Cardiovascular Disease Physician1538192463
- Julie Kreger, PA-CPhysician Assistant1073144168
- Kari McBride, APRNCritical Care Medicine Nurse Practitioner1962173922
- Ajay MishraCardiovascular Disease Physician1982181731
Verify Diana L. O'Neil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 1244Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% more Medicare Part D claims than the average physician assistant in 2024
1,295 Medicare Part D claims for 257 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Metoprolol Succinate133 claims
- Atorvastatin Calcium100 claims
- Spironolactone95 claims
- Torsemide91 claims
- Furosemide89 claims
- Lisinopril71 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.
Industry payments in 2024: $141.53
2 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Concord Hospital IncConcord, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana L. O'Neil among 947 physician assistant records in New Hampshire
Diana L. O'Neil is one of 947 physician assistant records with a practice address in New Hampshire. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 36% of them.
- NPI issued2014 · 36% of these records are older, 61% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2013 · median 2017 among the 730 with a school on file
- Record last updated2024 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
102 physician assistant records list a practice address in Concord
They are 102 of the 3,103 NPPES records with a practice address in Concord, and 947 physician assistant records in New Hampshire.
All 947 in New Hampshire → Every provider in Concord → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Sara Carrier, PA-CConcord, NH 033011275536336
- Sara Christian, PA-CConcord, NH 033011053395707
- Patricia Cousens, PA-CConcord, NH 033011457393274
- Jennifer Dephillips, PA-CConcord, NH 033011316985823
- Traci Ennis, PA-CConcord, NH 033011487692406
- Jordan Graustark, PA-CConcord, NH 033011336187301
- Joanne Gutt, PA-CConcord, NH 033011609817477
- Mark Iber, PAConcord, NH 033011891746384
Common questions
What is Diana L. O'Neil's NPI number?
Diana L. O'Neil's National Provider Identifier (NPI) is 1851718639, issued on Mar 18, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Diana L. O'Neil located?
The NPPES record lists a practice address at 246 Pleasant St Bldg West, Concord, NH, 03301. Phone: (603) 224-6070. Providers update this record themselves, so call before visiting.
How can I verify Diana L. O'Neil's license?
NPPES lists New Hampshire license number 1244, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Diana L. O'Neil prescribe under Medicare Part D?
In 2024, Diana L. O'Neil had 1,295 Medicare Part D claims for 257 beneficiaries; the average among physician assistant prescribers was 830. 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.