R Bryan Klassen, M.D.
NPI 1912281783 · Internal Medicine Physician · Monterey, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
R Bryan Klassen, M.D. is a Internal Medicine Physician provider in Monterey, CA (NPI 1912281783).
Provider details
- NPI number
- 1912281783
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A126332 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,750 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 688 | $98 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 333 | $82 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 180 | $125 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 163 | $60 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 115 | $54 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 448 | 130 |
| Levothyroxine Sodium | 292 | 71 |
| Rosuvastatin Calcium | 267 | 78 |
| Amlodipine Besylate | 259 | 74 |
| Lisinopril | 193 | 47 |
| Tamsulosin Hcl | 183 | 58 |
| Losartan Potassium |
Practice location
Mailing address
Additional practice locations (1)
- 450 Stanyan StGraduate Medical EducationSan Francisco, CA 94117-1019Phone: (480) 789-0050
Registry dates
- Enumerated
- 2011-09-28
- Last updated
- 2020-04-01
- Certified
- 2020-04-01
Frequently asked questions
- What is R Bryan Klassen's NPI number?
- R Bryan Klassen's National Provider Identifier (NPI) is 1912281783, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is R Bryan Klassen's specialty?
- R Bryan Klassen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is R Bryan Klassen located?
- R Bryan Klassen's practice location on file with NPPES is 2 Upper Ragsdale Dr Bldg a, Monterey, CA 93940-5736.
- What is R Bryan Klassen's phone number?
- The practice phone number listed in the NPPES registry for R Bryan Klassen is (831) 333-3040.
- Does R Bryan Klassen accept Medicare?
- R Bryan Klassen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is R Bryan Klassen's NPI active?
- Yes — R Bryan Klassen's NPI (1912281783) is active in the NPPES registry as of the last update on 2020-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.