Mary Alyson Nijem Lerstang, NP
Internal Medicine Physician · Simpsonville, SC
Mary Alyson Nijem Lerstang, NP is an internal medicine physician with a practice address in Simpsonville, South Carolina, and NPI 1851653091, issued on Jun 13, 2012. Check the license (South Carolina 21011, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mary Alyson Nijem Lerstang
- Credential
- NP
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 21011 SC
RN155655 GA
Self-reported in NPPES; status is on the state search - Practice location
- 312 Harrison Bridge RD, Simpsonville, SC 29680
- Phone
- (864) 603-5600
- Enumerated
- Jun 13, 2012
- Record last updated
- Jul 21, 2022
- Fax
- (864) 603-5601
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,881 in South Carolina → Look up another NPI →
Also registered at 312 Harrison Bridge RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rachel Langenfeld, PA-CPhysician Assistant1427758523
- Scott Leduc, PA-CPhysician Assistant1023528205
- Meredith MacneillFamily Nurse Practitioner1871173047
- James McAlpineInternal Medicine Physician1285020958
Verify Mary Alyson Nijem Lerstang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 21011Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
382 Medicare Part D claims for 69 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 18 claims were for opioids.
Most prescribed
- Levothyroxine Sodium49 claims
- Nitrofurantoin31 claims
- Omeprazole21 claims
- Prednisone21 claims
- Famotidine16 claims
- Divalproex Sodium15 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: $24.62
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Mary Alyson Nijem Lerstang among 1,881 internal medicine physician records in South Carolina
Mary Alyson Nijem Lerstang, NP is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 56% of them.
- NPI issued2012 · 56% of these records are older, 43% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2022 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 internal medicine physician records list a practice address in Simpsonville
They are 21 of the 1,142 NPPES records with a practice address in Simpsonville, and 1,881 internal medicine physician records in South Carolina.
All 1,881 in South Carolina → Every provider in Simpsonville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Banks Cates, M.D.Simpsonville, SC 296801801838693
- Patricia Cheek, MDSimpsonville, SC 296801427012194
- James McAlpineSimpsonville, SC 296801285020958
- Marcus Blackstone, MDSimpsonville, SC 296811366453458
- Connie Blackstone, MDSimpsonville, SC 296811497766588
- Laura Espinosa, MDSimpsonville, SC 296811902065915
- Edna Katherine GettysSimpsonville, SC 296811285809970
- Heather Moreira, M.D.Simpsonville, SC 296811306946561
Common questions
What is Mary Alyson Nijem Lerstang, NP's NPI number?
Mary Alyson Nijem Lerstang, NP's National Provider Identifier (NPI) is 1851653091, issued on Jun 13, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mary Alyson Nijem Lerstang, NP located?
The NPPES record lists a practice address at 312 Harrison Bridge RD, Simpsonville, SC, 29680. Phone: (864) 603-5600. Providers update this record themselves, so call before visiting.
How can I verify Mary Alyson Nijem Lerstang, NP's license?
NPPES lists South Carolina license number 21011, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary Alyson Nijem Lerstang, NP prescribe under Medicare Part D?
In 2024, Mary Alyson Nijem Lerstang, NP had 382 Medicare Part D claims for 69 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.