Roy Anthony Orden, MD
Allergy Physician · Walnut Creek, CA
Roy Anthony Orden, MD is an allergy physician with a practice address in Walnut Creek, California, and NPI 1861781056, issued on Mar 29, 2011. Check the license (California A141478, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roy Anthony Orden
- Credential
- MD
- Primary taxonomy
- Allergy Physician 207KA0200X
- License number
- A141478 CA
Self-reported in NPPES; status is on the state search - Practice location
- 370 N Wiget LN Ste 210, Walnut Creek, CA 94598
- Phone
- (925) 935-6252
- Enumerated
- Mar 29, 2011
- Record last updated
- Dec 2, 2024
- Fax
- (925) 935-7611
- Medicare enrollment
- Enrolled (PECOS I20161116001581); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy physician records → All 157 in California → Look up another NPI →
Also registered at 370 N Wiget LN Ste 210
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kendall Butz, PHYSICIAN ASSISTANTPhysician Assistant1801575543
- Kelsey Ige, MDAllergy Physician1013414135
- Joshua Jacobs, MDAllergy Physician1215920673
Verify Roy Anthony Orden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A141478Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average allergy physician in 2024
684 Medicare Part D claims for 143 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Montelukast Sodium114 claims
- Ipratropium Bromide80 claims
- Azelastine Hcl67 claims
- Trelegy Ellipta53 claims
- Albuterol Sulfate Hfa36 claims
- Spiriva Respimat30 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 69.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,280.68
85 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 502 providers of this specialty with any payment received $9,080.33 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
- Allergy And Asthma Medical Group OF The Bay Area IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roy Anthony Orden among 157 allergy physician records in California
Roy Anthony Orden, MD is one of 157 allergy physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 92% of them.
- NPI issued2011 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2011 · median 1992 among the 82 with a school on file
- Record last updated2024 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy Physician providers in California
There are 157 allergy physician records in California.
All 157 in California → Every provider in Walnut Creek → Allergy Physician nationwide →
The 8 allergy physician records with the nearest ZIP codes
- Shilpi Anand, M.D.Walnut Creek, CA 945981871556605
- Kelsey Ige, MDWalnut Creek, CA 945981013414135
- Joshua Jacobs, MDWalnut Creek, CA 945981215920673
- Candace Katz, M.D.Pleasanton, CA 945881477551505
- Dionisio Fernandes, MDSan Leandro, CA 945781285691121
- Kenneth Lien, MDCastro Valley, CA 945461396823092
- Rao Kosaraju, MDFremont, CA 945381528012325
- Michael Lenoir, MDFremont, CA 945381023065760
Common questions
What is Roy Anthony Orden, MD's NPI number?
Roy Anthony Orden, MD's National Provider Identifier (NPI) is 1861781056, issued on Mar 29, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Roy Anthony Orden, MD located?
The NPPES record lists a practice address at 370 N Wiget LN Ste 210, Walnut Creek, CA, 94598. Phone: (925) 935-6252. Providers update this record themselves, so call before visiting.
How can I verify Roy Anthony Orden, MD's license?
NPPES lists California license number A141478, 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 Roy Anthony Orden, MD prescribe under Medicare Part D?
In 2024, Roy Anthony Orden, MD had 684 Medicare Part D claims for 143 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.
What is Roy Anthony Orden, MD's MIPS final score?
The 2023 MIPS final score is 69.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.