Donald Mark Ruhland, M.D.
Anesthesiology Physician · Orange, CA
Donald Mark Ruhland, M.D. is an anesthesiology physician with a practice address in Orange, California, and NPI 1760455604, issued on Feb 10, 2006. Check the license (California G46331, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Donald Mark Ruhland
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- G46331 CA
Self-reported in NPPES; status is on the state search - Practice location
- 681 S Parker St Ste 150, Orange, CA 92868
- Phone
- (714) 744-0900
- Enumerated
- Feb 10, 2006
- Record last updated
- Jul 1, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (714) 744-0283
- Medicaid ID
- 00G463310 CA
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 681 S Parker St Ste 150
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Winnie Ruo, M.DAnesthesiology Physician1194767988
- Aalap Shah, M.D.Anesthesiology Physician1194014274
Verify Donald Mark Ruhland in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G46331Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average anesthesiology physician in 2024
16 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Donald Mark Ruhland among 7,571 anesthesiology physician records in California
Donald Mark Ruhland, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2015 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
267 anesthesiology physician records list a practice address in Orange
They are 267 of the 13,245 NPPES records with a practice address in Orange, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Orange → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Brandon Abeyta, MDOrange, CA 928681841291804
- Angela Azar, MDOrange, CA 928681164494274
- Jonathan Cohen, M.D.Orange, CA 928681184691867
- Ralph Da Graca, MDOrange, CA 928681861430456
- Scott Engwall, MDOrange, CA 928681851378392
- Sheree Hsu, M.D.Orange, CA 928681265499032
- Brian Levine, MDOrange, CA 928681629032891
- Ingrid Manz, CRNAOrange, CA 928681578501417
Common questions
What is Donald Mark Ruhland, M.D.'s NPI number?
Donald Mark Ruhland, M.D.'s National Provider Identifier (NPI) is 1760455604, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald Mark Ruhland, M.D. located?
The NPPES record lists a practice address at 681 S Parker St Ste 150, Orange, CA, 92868. Phone: (714) 744-0900. Providers update this record themselves, so call before visiting.
How can I verify Donald Mark Ruhland, M.D.'s license?
NPPES lists California license number G46331, 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 Donald Mark Ruhland, M.D. prescribe under Medicare Part D?
In 2024, Donald Mark Ruhland, M.D. had 16 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.