Michael Nelson, MD.
NPI 1346254968 · Internal Medicine Physician · Porter Ranch, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Nelson, MD. is a Internal Medicine Physician provider in Porter Ranch, CA (NPI 1346254968).
Provider details
- NPI number
- 1346254968
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD.
- Sex
- Male
- Sole proprietor
- No
- License
- G57167 (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
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
898 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 351 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 217 | $139 |
| 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'SG2211 | 67 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 64 | $140 |
| Administration of Influenza Virus VaccineG0008 | 44 | $35 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 135 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 880 | 248 |
| Amlodipine Besylate | 472 | 126 |
| Losartan Potassium | 396 | 119 |
| Levothyroxine Sodium | 262 | 68 |
| Omeprazole | 249 | 79 |
| Apixabanbrand: Eliquis | 226 | 38 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2014-04-03
Frequently asked questions
- What is Michael Nelson's NPI number?
- Michael Nelson's National Provider Identifier (NPI) is 1346254968, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Nelson's specialty?
- Michael Nelson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Nelson located?
- Michael Nelson's practice location on file with NPPES is 19950 Rinaldi St, Porter Ranch, CA 91326-4141.
- What is Michael Nelson's phone number?
- The practice phone number listed in the NPPES registry for Michael Nelson is (818) 403-2420.
- Does Michael Nelson accept Medicare?
- Michael Nelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Nelson's NPI active?
- Yes — Michael Nelson's NPI (1346254968) is active in the NPPES registry as of the last update on 2014-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.