Doctor profile · Federal record

Dr. Michael Nelson, MD.

Internal Medicine Physician (CMS: Internal Medicine) · Porter Ranch, CA

  • NPI 1346254968
  • Accepts Medicare
  • 42 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
19950 Rinaldi St
Porter Ranch, CA 913264141
(818) 403-2420
fax (818) 360-6036
Mailing address
Po Box 9602
Mission Hills, CA 913469602

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
April 3, 2014
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #G57167
Medicaid
CA #00G571670

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346254968. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
730
Distinct HCPCS
10
Medicare allowed
$49,010
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 274 121 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 191 106 $139
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 64 64 $140
G0008 Administration of influenza virus vaccine 49 49 $33
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 41 41 $76
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 28 22 $16
77067 Screening mammography 27 27 $109
99213 Established patient office or other outpatient visit, 20-29 minutes 22 20 $98
77063 Screening 3d breast mammography 18 18 $28
71046 X-ray of chest, 2 views 16 14 $25

In context: peer comparison

Among 4 peers in Porter Ranch Internal Medicine Physician, average services per provider: 75. This provider delivers 9.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,092
Patients
1,161
Total drug cost
$263,708
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 912 267 $18,349
Amlodipine Besylate Generic 469 134 $6,227
Losartan Potassium Generic 428 120 $9,648
Omeprazole Generic 268 82 $5,131
Levothyroxine Sodium Generic 265 76 $5,364
Metoprolol Tartrate Generic 226 64 $3,427
Metformin Hcl Generic 207 55 $2,664
Lisinopril Generic 199 54 $2,370
Eliquis (Apixaban) Brand 197 46 $184,442
Rosuvastatin Calcium Generic 181 55 $8,335

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Nelson's medical specialty?
Dr. Michael Nelson practices Internal Medicine Physician in Porter Ranch, CA.
Where does Dr. Michael Nelson practice?
Dr. Michael Nelson practices at 19950 Rinaldi St, Porter Ranch, CA 913264141. Office phone: 8184032420.
What is Dr. Michael Nelson's NPI?
Dr. Michael Nelson's National Provider Identifier (NPI) is 1346254968, issued by NPPES.
Does Dr. Michael Nelson accept Medicare assignment?
Yes. Dr. Michael Nelson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Nelson commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.