Margaret Manger Barnum, N.P.
Family Nurse Practitioner · Natchitoches, LA
Margaret Manger Barnum, N.P. is a family nurse practitioner with a practice address in Natchitoches, Louisiana, and NPI 1487798823, issued on Feb 19, 2007. Check the license (Louisiana RN075967, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Manger Barnum
- Credential
- N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- RN075967 LA
AP04510 LA
RN075967 AP04510 LA
Self-reported in NPPES; status is on the state search - Practice location
- 617 Bienville St, Natchitoches, LA 71457
- Phone
- (318) 352-9880
- Enumerated
- Feb 19, 2007
- Record last updated
- Aug 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (318) 357-1347
- Medicaid ID
- 2101803 LA
- Medicare enrollment
- Enrolled (PECOS I20041102000032); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 617 Bienville St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Otis Barnum, DOInternal Medicine Physician1245224559
- Haley JohnsonFamily Nurse Practitioner1427408137
- William Luster, MDFamily Medicine Physician1467695528
Verify Margaret Manger Barnum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license RN075967Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.4 times the Medicare Part D claims of the average family nurse practitioner in 2024
8,387 Medicare Part D claims for 482 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 87 claims were for opioids.
Most prescribed
- Atorvastatin Calcium483 claims
- Lisinopril239 claims
- Omeprazole236 claims
- Gabapentin233 claims
- Losartan Potassium204 claims
- Amlodipine Besylate202 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: $312.27
16 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 99,489 providers of this specialty with any payment received $650.95 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 2 group practices
- CH Mssp Services LA LLCSulphur, LA
- Curana Health OF Louisiana LLCBaton Rouge, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
26 family nurse practitioner records list a practice address in Natchitoches
They are 26 of the 556 NPPES records with a practice address in Natchitoches, and 4,503 family nurse practitioner records in Louisiana.
All 26 in Natchitoches → All 4,503 in Louisiana → Every provider in Natchitoches →
Other family nurse practitioner records in Louisiana
- Julianna Aaron, FNP-CShreveport, LA1922466788
- Cayla Abad, FNP-CBaton Rouge, LA1518611706
- Brooke Abadie, NPBaton Rouge, LA1013833565
- Tori AbbessBaton Rouge, LA1881433324
- Kimberly Abbott, N.P.Prairieville, LA1740203041
- Halimo Abdi, APRNLafayette, LA1053041491
- Karen Abel, APRN, CFNPIowa, LA1952475717
- Michael Abernathy, FNP-CNew Orleans, LA1518891142
- Amy Ables, NPBaton Rouge, LA1649919986
- Sh'Derrica Abner, FNPShreveport, LA1972368546
Common questions
What is Margaret Manger Barnum, N.P.'s NPI number?
Margaret Manger Barnum, N.P.'s National Provider Identifier (NPI) is 1487798823, issued on Feb 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Manger Barnum, N.P. located?
The NPPES record lists a practice address at 617 Bienville St, Natchitoches, LA, 71457. Phone: (318) 352-9880. Providers update this record themselves, so call before visiting.
How can I verify Margaret Manger Barnum, N.P.'s license?
NPPES lists Louisiana license number RN075967, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Manger Barnum, N.P. prescribe under Medicare Part D?
In 2024, Margaret Manger Barnum, N.P. had 8,387 Medicare Part D claims for 482 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.