Dr. William D. Welsh, DO

Dr. Welsh practices at Maguire & Welsh Medical Group in Whittier, California.

Dr. Welsh's NPI, 1568401255, was assigned on June 6, 2006. Dr. Welsh graduated from Des Moines University in 1975. Dr. Welsh holds California license 20A4272.

Dr. Welsh's primary practice is Maguire & Welsh Medical Group, at 7624 Painter Ave Suite 100 Suite 100, Whittier, CA 90602-2327. The practice phone is (562) 945-9333.

Dr. Welsh's primary practice is Maguire & Welsh Medical Group in Whittier, California. Dr. Welsh is also affiliated with PIH Health Whittier Hospital. The medical group on file is Maguire & Welsh Medical Group. Dmand AI also links Dr. Welsh to 2 more home health agencies, 2 hospices and 1 skilled nursing facility, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Welsh practices, 7 sites in all. Vendor and product names are available with a free account.

Geriatric medicine is Dr. Welsh's primary specialty in the NPI Registry, under taxonomy code 207RG0300X. Dr. Welsh is board certified in certificate of added qualification geriatric medicine by the American Osteopathic Board of Family Physicians. Dmand AI has Dr. Welsh's licenses on file in 2 states: California and Michigan.

Dmand AI lists acid reflux, acute gastroduodenitis, acute sinusitis, acute skin infection, anxiety, arthritis, asthma and atrial fibrillation and flutter among the conditions Dr. Welsh treats.

CMS data shows 2,895 Medicare services from Dr. Welsh across 23 procedure codes in 2024, for 331 Medicare patients. Medicare paid $90,620 for them.

CMS counts 331 Medicare patients who saw Dr. Welsh in 2024. The largest group is 75 to 84, with 124 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.61, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Welsh's median patient age at 76, with 57% women.

In 2024, Dr. Welsh wrote 18,661 Medicare Part D claims for 982 patients. 82% of them were for generic drugs. CMS names the drug for 17,768 of them, across 212 drugs with 11 or more claims each, at $2,163,241 in total drug cost. In 2023, CMS named 17,427 claims across 197 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Welsh for performance year 2024, reported individually. Dr. Welsh accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Welsh as offering telehealth.

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 964 general payments to Dr. Welsh from 66 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Pfizer Inc. paid the most, $2,561. It also lists 1 research payment totaling $150 in 2020.

Dmand AI lists 1 award for Dr. Welsh, most recently Adjunct Clinical Faculty Supervisor of Geriatric Medicine in 2012.

Dr. Welsh graduated from Des Moines University in 1975. Dr. Welsh is a member of AOA.

Dr. Welsh is in network with 13 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.