NPPES file of Aug 9, 2026

Elizabeth Irvin Oquinn, NP

Nurse Practitioner · North Charleston, SC

Elizabeth Irvin Oquinn, NP is a nurse practitioner with a practice address in North Charleston, South Carolina, and NPI 1770366320, issued on Aug 17, 2023. Check the license (South Carolina 27408, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770366320
Name
Elizabeth Irvin Oquinn
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
27408 SC
Self-reported in NPPES; status is on the state search
Practice location
3815 Faber Place Dr, North Charleston, SC 29405
Phone
(843) 767-9312
Enumerated
Aug 17, 2023
Record last updated
Aug 17, 2023
Fax
(843) 767-9313
Medicare enrollment
Enrolled (PECOS I20231116000611); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3815 Faber Place Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Henry Ayiku, MDNephrology Physician1477509404
  2. Richard Browder, M.D.Nephrology Physician1700889938
  3. Crystal Campbell, PA-CPhysician Assistant1447579727
  4. Kenneth Dodds, M.D.Nephrology Physician1962405191
  5. Samuel Franklin, M.D.Nephrology Physician1942203161
  6. Norwood Hamilton, MDNephrology Physician1831160431

Verify Elizabeth Irvin Oquinn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
    Search for license 27408
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the South Carolina license search

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45% fewer Medicare Part D claims than the average nurse practitioner in 2024

607 Medicare Part D claims for 188 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Elizabeth Oquinn607
  2. Specialty average1,109

Most prescribed

  1. Velphoro48 claims
  2. Amlodipine Besylate44 claims
  3. Doxazosin Mesylate39 claims
  4. Hydralazine Hcl38 claims
  5. Sevelamer Carbonate37 claims
  6. Furosemide36 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: $491.36

23 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, 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.

  1. Elizabeth Oquinn$491.36
  2. Specialty average$791.64

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

  1. Charleston Nephrology Associates, LLCNorth Charleston, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Elizabeth Irvin Oquinn among 1,263 nurse practitioner records in South Carolina

Elizabeth Irvin Oquinn, NP is one of 1,263 nurse practitioner records with a practice address in South Carolina. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 79% of them.

  • NPI issued2023 · 79% of these records are older, 14% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2023 · median 2018 among the 791 with a school on file
  • Record last updated2023 · 39% 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 South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

25 nurse practitioner records list a practice address in North Charleston

They are 25 of the 1,964 NPPES records with a practice address in North Charleston, and 1,263 nurse practitioner records in South Carolina.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Mary Brown, FNPNorth Charleston, SC 294051932179843
  2. Laquandra BrownNorth Charleston, SC 294051558031377
  3. Kimberly Rhoton, ANPNorth Charleston, SC 294051013248822
  4. Mary Wilchanovsky, APRN, WHNPCharleston, SC 294051164423695
  5. Cynthia Worley, NURSE PRACTITIONERNorth Charleston, SC 294051558748202
  6. Brooke Coyne, AGPCNP-BCNorth Charleston, SC 294061821495425
  7. Crystal DixonN Charleston, SC 294061598138729
  8. Sara Jasper, AGACNP-BCCharleston, SC 294061114342839

Common questions

What is Elizabeth Irvin Oquinn, NP's NPI number?

Elizabeth Irvin Oquinn, NP's National Provider Identifier (NPI) is 1770366320, issued on Aug 17, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Irvin Oquinn, NP located?

The NPPES record lists a practice address at 3815 Faber Place Dr, North Charleston, SC, 29405. Phone: (843) 767-9312. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Irvin Oquinn, NP's license?

NPPES lists South Carolina license number 27408, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

How much does Elizabeth Irvin Oquinn, NP prescribe under Medicare Part D?

In 2024, Elizabeth Irvin Oquinn, NP had 607 Medicare Part D claims for 188 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.