Registry data as of Aug 27, 2026

Ronald Bitter, M.D.

Internal Medicine Physician · Long Beach, CA

Ronald Bitter, M.D. is an internal medicine physician with a practice address in Long Beach, California, and NPI 1770691883, issued on Aug 28, 2006. Check the license (California G032420, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1770691883
Name
Ronald Bitter
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G032420 CA
Self-reported in NPPES; status is on the state search
Practice location
2650 Elm Ave Ste 309, Long Beach, CA 90806
Phone
(562) 595-8549
Enumerated
Aug 28, 2006
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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Also registered at 2650 Elm Ave Ste 309

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

  1. Heather Gerard, P.A.Medical Physician Assistant1528245578
  2. Stephen Hryniewicki, M.D.Internal Medicine Physician1598871741

Verify Ronald Bitter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G032420
    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 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

216 internal medicine physician records list a Long Beach practice address

They are 216 of the 13,650 NPPES records with a Long Beach practice address, and 20,403 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Ronald Bitter, M.D.'s NPI number?

Ronald Bitter, M.D.'s National Provider Identifier (NPI) is 1770691883, issued on Aug 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald Bitter, M.D. located?

The NPPES record lists a practice address at 2650 Elm Ave Ste 309, Long Beach, CA, 90806. Phone: (562) 595-8549. Providers update this record themselves, so call before visiting.

How can I verify Ronald Bitter, M.D.'s license?

NPPES lists California license number G032420, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.