NPPES file of Aug 9, 2026

Gediminas Ruibys, M.D.

Internal Medicine Physician · Carmel, CA

Gediminas Ruibys, M.D. is an internal medicine physician with a practice address in Carmel, California, and NPI 1932365780, issued on Jul 31, 2008. Check the license (California A128120, as entered in NPPES) on the Medical Board of California; 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
1932365780
Name
Gediminas Ruibys
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
A128120 CA
2007005070 MO
Self-reported in NPPES; status is on the state search
Practice location
275 Crossroads Blvd, Carmel, CA 93923
Phone
(831) 582-2100
Enumerated
Jul 31, 2008
Record last updated
Nov 11, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(831) 620-0304
Medicare enrollment
Enrolled (PECOS I20140710002610); accepts Medicare assignment
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 275 Crossroads Blvd

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

  1. Andrew Johnston, MDInternal Medicine Physician1710931019
  2. Eugene Lee, M.D.Psychiatry Physician1215052428
  3. Peter Michas-Martin, M.D.Neurology Physician1033422142
  4. Keiko Saito, M.D.Internal Medicine Physician1407080831

Verify Gediminas Ruibys in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A128120
    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.

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82% more Medicare Part D claims than the average internal medicine physician in 2024

5,765 Medicare Part D claims for 608 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 42 claims were for opioids.

  1. Gediminas Ruibys5,765
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium310 claims
  2. Levothyroxine Sodium288 claims
  3. Amlodipine Besylate251 claims
  4. Lisinopril195 claims
  5. Rosuvastatin Calcium195 claims
  6. Zolpidem Tartrate186 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. Montage Medical GroupCarmel, CA

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

Gediminas Ruibys among 17,696 internal medicine physician records in California

Gediminas Ruibys, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 40% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2004 · median 2004 among the 11,065 with a school on file
  • Record last updated2014 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 internal medicine physician records list a practice address in Carmel

They are 12 of the 245 NPPES records with a practice address in Carmel, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jessitasinghna Albert Messiah Dhas, MDCarmel, CA 939231508392911
  2. Carl Bergstrom, MDCarmel, CA 939231407937139
  3. Walter Holz, MDCarmel, CA 939231255443495
  4. Andrew Johnston, MDCarmel, CA 939231710931019
  5. Denise Mark, M.D.Carmel, CA 939231558437004
  6. Matthew NeohCarmel, CA 939231215390935
  7. Roger Newton, M.D.Carmel, CA 939231902270374
  8. Keiko Saito, M.D.Carmel, CA 939231407080831

Common questions

What is Gediminas Ruibys, M.D.'s NPI number?

Gediminas Ruibys, M.D.'s National Provider Identifier (NPI) is 1932365780, issued on Jul 31, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Gediminas Ruibys, M.D. located?

The NPPES record lists a practice address at 275 Crossroads Blvd, Carmel, CA, 93923. Phone: (831) 582-2100. Providers update this record themselves, so call before visiting.

How can I verify Gediminas Ruibys, M.D.'s license?

NPPES lists California license number A128120, 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.

How much does Gediminas Ruibys, M.D. prescribe under Medicare Part D?

In 2024, Gediminas Ruibys, M.D. had 5,765 Medicare Part D claims for 608 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.