Neil O'Regan, MD
Obstetrics & Gynecology Physician · Lowell, MA
Neil O'Regan, MD is an obstetrics & gynecology physician with a practice address in Lowell, Massachusetts, and NPI 1457311821, issued on Mar 28, 2006. Check the license (Massachusetts 252535, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Neil O'Regan
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 252535 MA
015364 ME
10965 NH
Self-reported in NPPES; status is on the state search - Practice location
- 295 Varnum Ave, Lowell, MA 01854
- Phone
- (978) 452-2121
- Enumerated
- Mar 28, 2006
- Record last updated
- Mar 30, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (978) 452-9371
- Medicaid IDs
- 03142006671601 ME
30200830 NH - Medicare enrollment
- Enrolled (PECOS I20121022000480); may accept Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →
Also registered at 295 Varnum Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Donald Agostinelli, M.D.Anatomic Pathology & Clinical Pathology Physician1144296450
- Muneer Ahmad, MDHospitalist Physician1902151301
- Jokha Ahmed, MDGeriatric Medicine (Internal Medicine) Physician1306369749
Verify Neil O'Regan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 252535Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
97 Medicare Part D claims for 37 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol16 claims
- Estradiol (Once Weekly)11 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: $87.50
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Circle Health Obgyn, LLC.North Chelmsford, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neil O'Regan among 1,127 obstetrics & gynecology physician records in Massachusetts
Neil O'Regan, MD is one of 1,127 obstetrics & gynecology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 50% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1996 · median 2004 among the 715 with a school on file
- Record last updated2017 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Massachusetts
There are 1,127 obstetrics & gynecology physician records in Massachusetts.
All 1,127 in Massachusetts → Every provider in Lowell → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Elizabeth Emberley, DOLowell, MA 018541326337098
- Carlos Madrid, M.D.Lowell, MA 018541902831969
- Patricia Nilles, MDLowell, MA 018521669531315
- Catherine Cornell, M.D.North Andover, MA 018451053410803
- Kristin D'Orsi, D.O.North Chelmsford, MA 018631649533928
- Nonnie Estella, MDNorth Chelmsford, MA 018631568464881
- Michael Grossman, M.D.North Andover, MA 018451831188218
- Michel Lirette, MDN Andover, MA 018451598727117
Common questions
What is Neil O'Regan, MD's NPI number?
Neil O'Regan, MD's National Provider Identifier (NPI) is 1457311821, issued on Mar 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Neil O'Regan, MD located?
The NPPES record lists a practice address at 295 Varnum Ave, Lowell, MA, 01854. Phone: (978) 452-2121. Providers update this record themselves, so call before visiting.
How can I verify Neil O'Regan, MD's license?
NPPES lists Massachusetts license number 252535, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Neil O'Regan, MD prescribe under Medicare Part D?
In 2024, Neil O'Regan, MD had 97 Medicare Part D claims for 37 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.