Ryan Klein, MD
NPI 1184620866 · Internal Medicine Physician · Newport Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Klein, MD is a Internal Medicine Physician provider in Newport Beach, CA (NPI 1184620866).
Provider details
- NPI number
- 1184620866
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A0661244 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,733 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,131 | $147 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 583 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 302 | $17 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 240 | $87 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 226 | $205 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 508 | 126 |
| Amlodipine Besylate | 443 | 112 |
| Atorvastatin Calcium | 291 | 70 |
| Levothyroxine Sodium | 287 | 73 |
| Metoprolol Succinate | 265 | 67 |
| Furosemide | 236 | 57 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,732 across 163 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-27
- Last updated
- 2008-01-17
Frequently asked questions
- What is Ryan Klein's NPI number?
- Ryan Klein's National Provider Identifier (NPI) is 1184620866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Klein's specialty?
- Ryan Klein is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Klein located?
- Ryan Klein's practice location on file with NPPES is 1501 Superior Ave, Newport Beach, CA 92663-3600.
- What is Ryan Klein's phone number?
- The practice phone number listed in the NPPES registry for Ryan Klein is (949) 274-8030.
- Does Ryan Klein accept Medicare?
- Ryan Klein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Klein's NPI active?
- Yes — Ryan Klein's NPI (1184620866) is active in the NPPES registry as of the last update on 2008-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.