Erik Geiger, MD
NPI 1255490199 · Internal Medicine Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erik Geiger, MD is a Internal Medicine Physician provider in Irvine, CA (NPI 1255490199).
Provider details
- NPI number
- 1255490199
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A84929 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
10,680 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) |
|---|---|---|
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 2,591 | $54 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes99458 | 2,391 | $42 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 2,022 | $52 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 1,662 | $67 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 1,221 | $55 |
| Remote Monitoring of Physiologic Parameters, Initial Set-Up and Patient Education on Use of Equipment |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 61 | 31 |
| Metoprolol Succinate | 24 | 13 |
| Hydrochlorothiazide | 21 | 14 |
| Lisinopril | 16 | — |
| Gabapentin | 13 | — |
| Hydralazine Hcl | 13 | — |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-06
- Last updated
- 2016-11-22
Frequently asked questions
- What is Erik Geiger's NPI number?
- Erik Geiger's National Provider Identifier (NPI) is 1255490199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erik Geiger's specialty?
- Erik Geiger is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Erik Geiger located?
- Erik Geiger's practice location on file with NPPES is 11 Technology Dr, Irvine, CA 92618-2302.
- What is Erik Geiger's phone number?
- The practice phone number listed in the NPPES registry for Erik Geiger is (855) 206-6764.
- Does Erik Geiger accept Medicare?
- Erik Geiger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erik Geiger's NPI active?
- Yes — Erik Geiger's NPI (1255490199) is active in the NPPES registry as of the last update on 2016-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.