Catherine A. Obin, ANCC
Nurse Practitioner · Wareham, MA
Catherine A. Obin, ANCC is a nurse practitioner with a practice address in Wareham, Massachusetts, and NPI 1841286739, issued on Sep 26, 2005. Check the license (Massachusetts 494841, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine A. Obin
- Credential
- ANCC
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 494841 MA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Rosebrook Way, Wareham, MA 02571
- Phone
- (508) 273-4950
- Enumerated
- Sep 26, 2005
- Record last updated
- Apr 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (508) 273-4951
- Medicare enrollment
- Enrolled (PECOS I20040528000784); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →
Also registered at 100 Rosebrook Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine A. Obin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 494841Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average nurse practitioner in 2024
3,793 Medicare Part D claims for 362 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 100 claims were for opioids.
Most prescribed
- Omeprazole165 claims
- Amlodipine Besylate148 claims
- Atorvastatin Calcium137 claims
- Levothyroxine Sodium126 claims
- Lisinopril113 claims
- Lorazepam112 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: $781.37
8 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 38,884 providers of this specialty with any payment received $791.64 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
- Southcoast Physicians Group IncFairhaven, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine A. Obin among 3,480 nurse practitioner records in Massachusetts
Catherine A. Obin, ANCC is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2002 · median 2017 among the 1,963 with a school on file
- Record last updated2020 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 nurse practitioner records list a practice address in Wareham
They are 19 of the 298 NPPES records with a practice address in Wareham, and 3,480 nurse practitioner records in Massachusetts.
All 3,480 in Massachusetts → Every provider in Wareham → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Colleen Berg, N.P.Wareham, MA 025711477628527
- Victoria Cabral, DNP, AGPCNP-BCWareham, MA 025711588115356
- Judith Catalan, NPWareham, MA 025711124212634
- Hillary Costa, FNP-CWareham, MA 025711679931505
- Erin Edwards, ANPWareham, MA 025711255686580
- Melissa Gaffney, AGACNP-BCWareham, MA 025711740821123
- Jeanne Larock, NPWareham, MA 025711750361713
- Erin Murray, NPWareham, MA 025711649211053
Common questions
What is Catherine A. Obin, ANCC's NPI number?
Catherine A. Obin, ANCC's National Provider Identifier (NPI) is 1841286739, issued on Sep 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Catherine A. Obin, ANCC located?
The NPPES record lists a practice address at 100 Rosebrook Way, Wareham, MA, 02571. Phone: (508) 273-4950. Providers update this record themselves, so call before visiting.
How can I verify Catherine A. Obin, ANCC's license?
NPPES lists Massachusetts license number 494841, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine A. Obin, ANCC prescribe under Medicare Part D?
In 2024, Catherine A. Obin, ANCC had 3,793 Medicare Part D claims for 362 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.