NPPES file of Aug 9, 2026

Alyson McGhan Johnson, MD

Gastroenterology Physician · Raleigh, NC

Alyson McGhan Johnson, MD is a gastroenterology physician with a practice address in Raleigh, North Carolina, and NPI 1962778118, issued on Mar 31, 2012. Check the license (North Carolina 201600412, as entered in NPPES) on the North Carolina Medical Board; 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
1962778118
Name
Alyson McGhan Johnson
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
201600412 NC
Self-reported in NPPES; status is on the state search
Practice location
3480 Wake Forest RD Ste 500, Raleigh, NC 27609
Phone
(919) 684-6437
Enumerated
Mar 31, 2012
Record last updated
Dec 5, 2023
Fax
(919) 681-8147
Medicare enrollment
Enrolled (PECOS I20160609000429); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2012
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 3480 Wake Forest RD Ste 500

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

  1. Melissa Cordova Rosado, FNP-BCGastroenterology Physician1073255121
  2. Sarah DawkinsFamily Nurse Practitioner1124402508
  3. Allison Delucca, PA-C, RDNPhysician Assistant1639569874
  4. Janathea O'Regan, PAPhysician Assistant1427372770

Verify Alyson McGhan Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 201600412
    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
Open the North Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% fewer Medicare Part D claims than the average gastroenterology physician in 2024

98 Medicare Part D claims for 66 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Alyson Johnson98
  2. Specialty average811

Most prescribed

  1. Gavilyte-G18 claims
  2. Omeprazole15 claims
  3. Ciprofloxacin Hcl14 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.

Bills Medicare through one group practice

  1. Duke Health Integrated Practice IncDurham, NC

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

Alyson McGhan Johnson among 681 gastroenterology physician records in North Carolina

Alyson McGhan Johnson, MD is one of 681 gastroenterology physician records with a practice address in North Carolina. 83% 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 75% of them.

  • NPI issued2012 · 75% of these records are older, 22% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2012 · median 2002 among the 498 with a school on file
  • Record last updated2023 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in North Carolina

There are 681 gastroenterology physician records in North Carolina.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Melissa Cordova Rosado, FNP-BCRaleigh, NC 276091073255121
  2. Justin CrockerRaleigh, NC 276091447410394
  3. Jennifer Dziwis, MDRaleigh, NC 276091831652908
  4. Michael Feiler, M.D.Raleigh, NC 276091528141785
  5. Karla Nieves Borrero, M.D.Raleigh, NC 276091720305766
  6. Alexander ReddyRaleigh, NC 276091093211013
  7. Henry Vanpala, M.D.Raleigh, NC 276091710241658
  8. Jinyu Zhang, M.D.Raleigh, NC 276091548689771

Common questions

What is Alyson McGhan Johnson, MD's NPI number?

Alyson McGhan Johnson, MD's National Provider Identifier (NPI) is 1962778118, issued on Mar 31, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Alyson McGhan Johnson, MD located?

The NPPES record lists a practice address at 3480 Wake Forest RD Ste 500, Raleigh, NC, 27609. Phone: (919) 684-6437. Providers update this record themselves, so call before visiting.

How can I verify Alyson McGhan Johnson, MD's license?

NPPES lists North Carolina license number 201600412, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alyson McGhan Johnson, MD prescribe under Medicare Part D?

In 2024, Alyson McGhan Johnson, MD had 98 Medicare Part D claims for 66 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.