MR. MICHAEL J RYAN M.D
NPI 1700863511
Internal Medicine - Pulmonary Disease in San Luis Obispo, CA
About Mr. Michael J Ryan M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MICHAEL J RYAN M.D (NPI 1700863511) is an individual pulmonary disease provider in San Luis Obispo, California, licensed in California (A86911) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Luis Obispo, and is a graduate of Other (1997).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 17
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mr. Michael J Ryan M.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Michael Ryan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Luis Obispo, CA 93401
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
Hanford, CA 93230
- Reassigned Medicare billing, California enrollment
- 56 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 17
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN LUIS OBISPO, CA 93401
SAN LUIS OBISPO, CA 93401
SAN LUIS OBISPO, CA 93401
SAN LUIS OBISPO, CA 93401
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Michael Ryan's NPI number?
The NPI number for Michael Ryan is 1700863511. It was assigned to this individual provider in the NPPES registry on December 22, 2005.
Where is Michael Ryan located?
Michael Ryan practices at 1428 Phillips Ln Ste 203, San Luis Obispo, CA 93401. The listed phone number is (805) 543-4407.
What is Michael Ryan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Michael Ryan enrolled in Medicare?
Yes. Michael Ryan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Michael Ryan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Ryan reassigns Medicare benefits to 4 organizations: Central Coast Chest Consultants A Medical Corporation (San Luis Obispo, CA), Central Valley Critical Care Medicine - A Professional Corporat (Hanford, CA), Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA) and Inpatient Specialists Of California, PC (San Bernardino, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Ryan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Michael Ryan was last updated on November 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mr. Michael J Ryan, M.D · NPI 1700863511
Pulmonary Disease physician in San Luis Obispo, California. Individual provider, active in the CMS NPPES registry since December 22, 2005.
## Identity
- **NPI:** 1700863511 (Entity type: Individual)
- **Enumerated:** December 22, 2005
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** A86911 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1428 PHILLIPS LN STE 203, San Luis Obispo, CA 93401-2551
- **Phone:** (805) 543-4407 · **Fax:** (805) 543-4587
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Central Coast Chest Consultants A Medical Corporation (NPI 1740267574, San Luis Obispo, CA); Central Valley Critical Care Medicine - A Professional Corporat (NPI 1366829640, Hanford, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA); Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** November 3, 2023
- **Other identifiers:** Medicaid 1700863511 (VA); Other PAR (VA); Other -029 (VA); and 14 more
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Source: [NPI Profile](https://npiprofile.com/npi/1700863511) · Data from the CMS NPPES public registry.