Ryan M. Klein, MD
Internal Medicine Physician · Newport Beach, CA
Ryan M. Klein, MD is an internal medicine physician with a practice address in Newport Beach, California, and NPI 1184620866, issued on Jun 27, 2005. Check the license (California A0661244, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan M. Klein
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A0661244 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1501 Superior Ave, Newport Beach, CA 92663
- Phone
- (949) 274-8030
- Enumerated
- Jun 27, 2005
- Record last updated
- Jan 17, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (949) 642-3127
- Medicaid ID
- 00A612440 CA
- Medicare enrollment
- Enrolled (PECOS I20091219000056); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1501 Superior Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ryan M. Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A0661244Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,548 Medicare Part D claims for 484 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 11 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium508 claims
- Amlodipine Besylate443 claims
- Atorvastatin Calcium291 claims
- Levothyroxine Sodium287 claims
- Metoprolol Succinate265 claims
- Furosemide236 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.
The MIPS final score for 2023 (Medicare payment program): 98.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,732.13
163 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Huntington Beach Internal Medicine Group IncNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan M. Klein among 17,696 internal medicine physician records in California
Ryan M. Klein, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1995 · median 2004 among the 11,065 with a school on file
- Record last updated2008 · 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).
94 internal medicine physician records list a practice address in Newport Beach
They are 94 of the 4,414 NPPES records with a practice address in Newport Beach, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Newport Beach → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Brouwer, MDNewport Beach, CA 926631629018544
- William Bruce, MDNewport Beach, CA 926631265490890
- Gary Carlson, MDNewport Beach, CA 926631497700116
- David Chun, MDNewport Beach, CA 926631730152976
- Dennis Jordanides, M.D.Newport Beach, CA 926631285638031
- Kambiz Karimi, MDNewport Beach, CA 926631720061823
- Gregory Katz, MDNewport Beach, CA 926631184674178
- Cameron Khavarian, M.D.Newport Beach, CA 926631104871938
Common questions
What is Ryan M. Klein, MD's NPI number?
Ryan M. Klein, MD's National Provider Identifier (NPI) is 1184620866, issued on Jun 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ryan M. Klein, MD located?
The NPPES record lists a practice address at 1501 Superior Ave, Newport Beach, CA, 92663. Phone: (949) 274-8030. Providers update this record themselves, so call before visiting.
How can I verify Ryan M. Klein, MD's license?
NPPES lists California license number A0661244, 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 Ryan M. Klein, MD prescribe under Medicare Part D?
In 2024, Ryan M. Klein, MD had 7,548 Medicare Part D claims for 484 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Ryan M. Klein, MD's MIPS final score?
The 2023 MIPS final score is 98.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.