NPPES file of Aug 9, 2026

Gregory G. Johnson, MD

Addiction Medicine (Family Medicine) Physician · Akron, OH

Gregory G. Johnson, MD is an addiction medicine (family medicine) physician with a practice address in Akron, Ohio, and NPI 1285669481, issued on Jul 12, 2006. Check the license (Ohio 35.048254, as entered in NPPES) on the State Medical Board of Ohio; 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
1285669481
Name
Gregory G. Johnson
Credential
MD
Primary taxonomy
Addiction Medicine (Family Medicine) Physician 207QA0401X
License numbers
35.048254 OH
35-048254 OH
35048254 OH
Self-reported in NPPES; status is on the state search
Practice location
999 N Main St, Akron, OH 44310
Phone
(513) 834-7063
Enumerated
Jul 12, 2006
Record last updated
Dec 26, 2025
Fax
(513) 873-1567
Medicaid ID
0517622 OH
Medicare enrollment
Enrolled (PECOS I20070920000666); accepts Medicare assignment
Medical or professional school
Ohio State University College Of Medicine, 1979
Telehealth
Offers telehealth (CMS)
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 999 N Main St

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

  1. Brenda Alexander-O'Neil, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1467905778
  2. Jeremy Babb, LISWClinical Social Worker1255966875
  3. Chiquitta Brantley, LPNLicensed Practical Nurse1477398329
  4. Justin Brown, LSWSocial Worker1578047049
  5. Christa Brunelle, CDCAAddiction (Substance Use Disorder) Counselor1528683331
  6. Tiffany Chacon, RNRegistered Nurse1407520802

Verify Gregory G. Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35.048254
    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 Ohio license search

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80% fewer Medicare Part D claims than the average addiction medicine (family medicine) physician in 2024

135 Medicare Part D claims for 42 beneficiaries, against an average of 664 among the 581 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Gregory Johnson135
  2. Specialty average664

Most prescribed

  1. Buprenorphine-Naloxone111 claims
  2. Suboxone15 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. Brightview LLCCincinnati, OH

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

Gregory G. Johnson among 44 addiction medicine (family medicine) physician records in Ohio

Gregory G. Johnson, MD is one of 44 addiction medicine (family medicine) physician records with a practice address in Ohio. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 23% of them.

  • NPI issued2006 · 23% of these records are older, 52% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated1979 · median 1999 among the 20 with a school on file
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0401X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Medicine (Family Medicine) Physician providers in Ohio

There are 44 addiction medicine (family medicine) physician records in Ohio.

The 8 addiction medicine (family medicine) physician records with the nearest ZIP codes

  1. Nicole Labor, D.O.Akron, OH 443101598908485
  2. Suman Vellanki, M.D.Akron, OH 443101174878615
  3. Daniel Brown, D.O.Ravenna, OH 442661487635306
  4. Ann Difrangia, DOCuyahoga Falls, OH 442211023023694
  5. Nicholas Davis, MDCleveland, OH 441951063527489
  6. Trinetta Masternick, D.O.Lisbon, OH 444321851367759
  7. Wayne Kawalek, MDOakwood Village, OH 441461063514784
  8. Douglas Moinuddin, MDWestlake, OH 441451750907051

Common questions

What is Gregory G. Johnson, MD's NPI number?

Gregory G. Johnson, MD's National Provider Identifier (NPI) is 1285669481, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory G. Johnson, MD located?

The NPPES record lists a practice address at 999 N Main St, Akron, OH, 44310. Phone: (513) 834-7063. Providers update this record themselves, so call before visiting.

How can I verify Gregory G. Johnson, MD's license?

NPPES lists Ohio license number 35.048254, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory G. Johnson, MD prescribe under Medicare Part D?

In 2024, Gregory G. Johnson, MD had 135 Medicare Part D claims for 42 beneficiaries; the average among addiction medicine (family medicine) physician prescribers was 664. 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.