Dr. John Alexander Grimaldi, DO

Dr. Grimaldi practices at The Grimaldi Center for Wellness and Aesthetics in Chula Vista, California.

Dr. Grimaldi's NPI, 1821157033, was assigned on December 6, 2006. Dr. Grimaldi graduated from Chicago College of Osteopathic Medicine at Midwestern University in 2002. Dr. Grimaldi holds California license 20A11355.

Dr. Grimaldi's primary practice is The Grimaldi Center for Wellness and Aesthetics, at 450 4th Ave, Chula Vista, CA 91910-4426. The practice phone is (619) 420-0201.

Dr. Grimaldi's primary practice is The Grimaldi Center for Wellness and Aesthetics in Chula Vista, California. Dr. Grimaldi is also affiliated with Sharp Chula Vista Medical Center. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Grimaldi to 1 more hospital and 1 group practice or clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grimaldi practices, 4 sites in all. Vendor and product names are available with a free account.

Urology is Dr. Grimaldi's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Grimaldi is board certified in urology by the American Board of Urology. Dr. Grimaldi is licensed in California.

Dmand AI lists bladder disease, enlarged prostate, enlarged prostate transurethral surgery (TURP), erectile dysfunction, kidney stone disease, prostate cancer, urinary endoscopy and UTI among the conditions Dr. Grimaldi treats.

CMS data shows 2,408 Medicare services from Dr. Grimaldi across 12 procedure codes in 2024, for 597 Medicare patients. Medicare paid $441,785 for them. Every service was in an office.

CMS counts 597 Medicare patients who saw Dr. Grimaldi in 2026. The largest group is 65 to 74, with 222 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 1.62, 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. Grimaldi's median patient age at 73, with 23% women.

In 2026, Dr. Grimaldi wrote 5,752 Medicare Part D claims for 1,369 patients. 99% of them were for generic drugs. CMS names the drug for 5,589 of them, across 26 drugs with 11 or more claims each, at $148,933 in total drug cost. In 2023, CMS named 5,106 claims across 23 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Grimaldi for performance year 2026, reported individually. Dr. Grimaldi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of prostate resection by Dr. Grimaldi, more than 74% of the clinicians it reports for that procedure.

CMS Open Payments shows 188 general payments to Dr. Grimaldi from 24 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 88% of the total. Boston Scientific Corporation paid the most, $29,268.

Dr. Grimaldi graduated from Chicago College of Osteopathic Medicine at Midwestern University in 2002. Dr. Grimaldi is a member of ACOS, AOA, AUA and Sexual Medicine Society North America.

Dr. Grimaldi is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.