Michael Ryan, M.D
NPI 1700863511 · Pulmonary Disease Physician · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Ryan, M.D is a Pulmonary Disease Physician provider in San Luis Obispo, CA (NPI 1700863511).
Provider details
- NPI number
- 1700863511
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- A86911 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
20 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
855 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 213 | $209 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 156 | $118 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 139 | $9 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 132 | $10 |
| Test to Determine Lung Volumes Using Sensors94726 | 131 | $12 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 40 | $172 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Tadalafil | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1304 Ella St Ste aSan Luis Obispo, CA 93401-4165Phone: (805) 549-9555Fax: (805) 549-0444
Registry dates
- Enumerated
- 2005-12-22
- Last updated
- 2023-11-03
- Certified
- 2023-11-03
Frequently asked questions
- What is Michael Ryan's NPI number?
- Michael Ryan's National Provider Identifier (NPI) is 1700863511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Ryan's specialty?
- Michael Ryan is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Ryan located?
- Michael Ryan's practice location on file with NPPES is 1428 Phillips Ln Ste 203, San Luis Obispo, CA 93401-2551.
- What is Michael Ryan's phone number?
- The practice phone number listed in the NPPES registry for Michael Ryan is (805) 543-4407.
- Does Michael Ryan accept Medicare?
- Michael Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Ryan's NPI active?
- Yes — Michael Ryan's NPI (1700863511) is active in the NPPES registry as of the last update on 2023-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.