Doctor profile · Federal record

Dr. Michael Ryan, M.D

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Internal Medicine Physician · Critical Care Medicine (Internal Medicine) Physician · San Luis Obispo, CA

  • NPI 1700863511
  • Accepts Medicare
  • MIPS 90.2 / 100 · 2023
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1428 Phillips Ln Ste 203
San Luis Obispo, CA 934012551
(805) 543-4407
fax (805) 543-4587
Additional location
1304 Ella St Ste A
San Luis Obispo, CA 934014165
(805) 549-9555
fax (805) 549-0444

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
November 3, 2023
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
California #A86911
Medicaid (3)
VA #1700863511 · CA #WA86911A · NC #5908329

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700863511. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
855
Distinct HCPCS
7
Medicare allowed
$72,214
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 184 90 $213
94729 Test to examine how well the lungs exchange gases 155 154 $9
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 154 97 $120
94726 Test to determine lung volumes using sensors 152 151 $12
94060 Test to measure expiratory airflow and volume changes before and after medication administration 151 150 $10
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 47 43 $175
31624 Irrigation and suction of lung airways to obtain cells using an endoscope 12 11 $133

In context: peer comparison

Among 3 peers in San Luis Obispo Pulmonary Disease Physician, average services per provider: 84. This provider delivers 10× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
168
Patients
0
Total drug cost
$1,467,472
Drug Type Claims Patients Total cost
Tadalafil Generic 50 0 $80,019
Ambrisentan Generic 31 0 $137,727
Adempas (Riociguat) Brand 26 0 $324,945
Opsumit (Macitentan) Brand 23 0 $296,254
Uptravi (Selexipag) Brand 23 0 $628,420
Furosemide Generic 15 0 $107

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Ryan's medical specialty?
Dr. Michael Ryan practices Pulmonary Disease Physician in San Luis Obispo, CA.
Where does Dr. Michael Ryan practice?
Dr. Michael Ryan practices at 1428 Phillips Ln Ste 203, San Luis Obispo, CA 934012551. Office phone: 8055434407.
What is Dr. Michael Ryan's NPI?
Dr. Michael Ryan's National Provider Identifier (NPI) is 1700863511, issued by NPPES.
Does Dr. Michael Ryan accept Medicare assignment?
Yes. Dr. Michael Ryan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Ryan commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Test to examine how well the lungs exchange gases (HCPCS 94729); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.