Margret Lynette Callahan
Acute Care Nurse Practitioner · Greenville, SC
Margret Lynette Callahan is an acute care nurse practitioner with a practice address in Greenville, South Carolina, and NPI 1144195892, issued on Oct 10, 2025. Check the license (South Carolina 30891, as entered in NPPES) with the South Carolina board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Margret Lynette Callahan
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 30891 SC
Self-reported in NPPES; status is on the state search - Practice location
- 890 W Faris RD Ste 580, Greenville, SC 29605
- Phone
- (864) 455-7874
- Enumerated
- Oct 10, 2025
- Record last updated
- Jan 14, 2026
- Fax
- (864) 455-8933
- Medicare enrollment
- Enrolled (PECOS I20260115002391); may accept Medicare assignment
- Entity
- Type 1 · individual
Also registered at 890 W Faris RD Ste 580
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Annelise BrechtingPhysician Assistant1326741323
- Sean Callahan, M.D.Pulmonary Disease Physician1043505670
- Lea CallcottAcute Care Nurse Practitioner1912874157
- Saradamani Chinnaswamy, APRN (AGACNP-BC)Acute Care Nurse Practitioner1821545559
- Chelsea Colombo, ACNPAcute Care Clinical Nurse Specialist1629323654
- Thanh-Ha Cox, PA-CPhysician Assistant1417585126
Verify Margret Lynette Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
Search for license 30891Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Acute Care Nurse Practitioner providers in South Carolina
There are 465 acute care nurse practitioner records in South Carolina. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other acute care nurse practitioner records in South Carolina
- Casey AbramsColumbia, SC1639940919
- Kathryn Achanti, APRNCharleston, SC1922774199
- Linda Adams, CRNPPawleys Island, SC1639186851
- Dana Addison, APRNColumbia, SC1861940231
- Christina Adkins, NPColumbia, SC1386232890
- Alison Aguilera, DNP, ACNPC-AGWest Columbia, SC1437034774
- Ashley Alexander, APRNCharleston, SC1134668239
- Ashley Alexander, NPMyrtle Beach, SC1780185611
- Melanie All, APRNColumbia, SC1811499593
- Andrea Allen, NPWest Columbia, SC1679091128
Common questions
What is Margret Lynette Callahan's NPI number?
Margret Lynette Callahan's National Provider Identifier (NPI) is 1144195892, issued on Oct 10, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Margret Lynette Callahan located?
The NPPES record lists a practice address at 890 W Faris RD Ste 580, Greenville, SC, 29605. Phone: (864) 455-7874. Providers update this record themselves, so call before visiting.
How can I verify Margret Lynette Callahan's license?
NPPES lists South Carolina license number 30891, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity 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. 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.