NPPES file of Aug 9, 2026

N. Ragner Johnson, M.D.

Specialist · Glendale, CA

N. Ragner Johnson, M.D. is a specialist with a practice address in Glendale, California, and NPI 1528041076, issued on Nov 29, 2005. Check the license (California G8952, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1528041076
Name
N. Ragner Johnson
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G8952 CA
Self-reported in NPPES; status is on the state search
Practice location
1510 S Central Ave, Glendale, CA 91204
Phone
(818) 244-0112
Enumerated
Nov 29, 2005
Record last updated
Dec 17, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(818) 244-8544
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest specialist records → All 5,749 in California → Look up another NPI →

Also registered at 1510 S Central Ave

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

  1. Joseph Addiego, DPMPodiatrist1902907835
  2. April Beaty, MS, WHNP-BCNurse Practitioner1235992546
  3. Jose Checa, M.D.Pulmonary Disease Physician1700988003
  4. Susan Chobanian, M.D.Otolaryngology Physician1144402405
  5. Tinny DinhOphthalmology Physician1750593109
  6. Sherif El-Harazi, MD MPHOphthalmology Physician1982714887

Verify N. Ragner Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license G8952    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 California 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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N. Ragner Johnson among 5,749 specialist records in California

N. Ragner Johnson, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileNo · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2009 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 5,749 in California → Every provider in Glendale → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Gholam Farboody, MDGlendale, CA 912041831110923
  2. Arnel Joaquin, M.D.Glendale, CA 912041720032980
  3. David Rogers, M.D.Glendale, CA 912041770510513
  4. Ferdinant Saran, MDGlendale, CA 912041245280007
  5. David Sherman, M.D.Glendale, CA 912041235164294
  6. Hartyoun Yousif, M.D.Glendale, CA 912041306066899
  7. Albert Baktanian, M.D.Glendale, CA 912051336176072
  8. Gary Havens, M.D.Glendale, CA 912031497763999

Common questions

What is N. Ragner Johnson, M.D.'s NPI number?

N. Ragner Johnson, M.D.'s National Provider Identifier (NPI) is 1528041076, issued on Nov 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is N. Ragner Johnson, M.D. located?

The NPPES record lists a practice address at 1510 S Central Ave, Glendale, CA, 91204. Phone: (818) 244-0112. Providers update this record themselves, so call before visiting.

How can I verify N. Ragner Johnson, M.D.'s license?

NPPES lists California license number G8952, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.