Ryan Shilian, DO
Allergy & Immunology (Internal Medicine) Physician · Encino, CA
Ryan Shilian, DO is an allergy & immunology (internal medicine) physician with a practice address in Encino, California, and NPI 1598144032, issued on May 28, 2015. Check the license (California 34.013552, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan Shilian
- Credential
- DO
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License numbers
- 34.013552 CA
34.013552 OH
Self-reported in NPPES; status is on the state search - Practice location
- 16661 Ventura Blvd Ste 409, Encino, CA 91436
- Phone
- (818) 514-3544
- Enumerated
- May 28, 2015
- Record last updated
- Sep 14, 2022
- Fax
- (818) 578-0298
- Medicare enrollment
- Enrolled (PECOS I20220612000005); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest allergy & immunology (internal medicine) physician records → All 81 in California → Look up another NPI →
Verify Ryan Shilian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 34.013552Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024
294 Medicare Part D claims for 57 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Famotidine38 claims
- Montelukast Sodium38 claims
- Azelastine Hcl29 claims
- Hydroxyzine Hcl23 claims
- Ipratropium Bromide17 claims
- Olopatadine Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $313.39
7 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 321 providers of this specialty with any payment received $7,456.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Superior Hospitalist Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Shilian among 81 allergy & immunology (internal medicine) physician records in California
Ryan Shilian, DO is one of 81 allergy & immunology (internal medicine) physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 74% of them.
- NPI issued2015 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2014 · median 2010 among the 46 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology (Internal Medicine) Physician providers in California
There are 81 allergy & immunology (internal medicine) physician records in California.
All 81 in California → Every provider in Encino → Allergy & Immunology (Internal Medicine) Physician nationwide →
The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes
- Chongwei CuiThousand Oaks, CA 913601922369008
- Jesus Torpoco, MDReseda, CA 913351386744357
- Jonathan Jalali, MDPasadena, CA 911051548840929
- Amit Patel, MDUpland, CA 917861396734547
- Clara Toro, M.D.Chula Vista, CA 919101962438192
- Kevin Tse, M.D.La Jolla, CA 920371558528976
- Tejal NarsaiLong Beach, CA 908221326402330
- Sven Wang, MDLong Beach, CA 908151134707805
Common questions
What is Ryan Shilian, DO's NPI number?
Ryan Shilian, DO's National Provider Identifier (NPI) is 1598144032, issued on May 28, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Shilian, DO located?
The NPPES record lists a practice address at 16661 Ventura Blvd Ste 409, Encino, CA, 91436. Phone: (818) 514-3544. Providers update this record themselves, so call before visiting.
How can I verify Ryan Shilian, DO's license?
NPPES lists California license number 34.013552, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan Shilian, DO prescribe under Medicare Part D?
In 2024, Ryan Shilian, DO had 294 Medicare Part D claims for 57 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.