David Jon Grossklaus, M.D.
Urology Physician · Mesa, AZ
David Jon Grossklaus, M.D. is a urology physician with a practice address in Mesa, Arizona, and NPI 1750355392, issued on Feb 13, 2006. Check the license (Arizona 25961, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- David Jon Grossklaus
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 25961 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 6007 E Baseline RD, Mesa, AZ 85206
- Phone
- (480) 897-2727
- Enumerated
- Feb 13, 2006
- Record last updated
- Aug 8, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (480) 892-3035
- Medicare enrollment
- Enrolled (PECOS I20041124000733); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest urology physician records → All 277 in Arizona → Look up another NPI →
Verify David Jon Grossklaus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 25961Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average urology physician in 2024
3,194 Medicare Part D claims for 955 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. 201 claims were for opioids.
Most prescribed
- Alfuzosin Hcl Er851 claims
- Tamsulosin Hcl456 claims
- Ciprofloxacin Hcl368 claims
- Finasteride367 claims
- Hydrocodone-Acetaminophen164 claims
- Sildenafil Citrate84 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): 100 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: $515.67
31 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 9,340 providers of this specialty with any payment received $3,800.04 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
- David J. Grossklaus, M.d.,p.c.Mesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Jon Grossklaus among 277 urology physician records in Arizona
David Jon Grossklaus, M.D. is one of 277 urology physician records with a practice address in Arizona. 79% 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 18% of them.
- NPI issued2006 · 18% of these records are older, 50% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1996 · median 2003 among the 192 with a school on file
- Record last updated2013 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Arizona
There are 277 urology physician records in Arizona.
All 277 in Arizona → Every provider in Mesa → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Kashif Alvi, MDMesa, AZ 852061407982887
- James Cord, M.D.Mesa, AZ 852061376522284
- Casey Lythgoe, MDMesa, AZ 852061780995670
- Rahul Mehan, M.D.Mesa, AZ 852061770740367
- Greggory Peifer, D.O.Mesa, AZ 852061326420746
- Robert Shahon, MDMesa, AZ 852061841295771
- Barry Sonkin, M.D.Mesa, AZ 852061548335623
- Harpreet Wadhwa, MDMesa, AZ 852061386943801
Common questions
What is David Jon Grossklaus, M.D.'s NPI number?
David Jon Grossklaus, M.D.'s National Provider Identifier (NPI) is 1750355392, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Jon Grossklaus, M.D. located?
The NPPES record lists a practice address at 6007 E Baseline RD, Mesa, AZ, 85206. Phone: (480) 897-2727. Providers update this record themselves, so call before visiting.
How can I verify David Jon Grossklaus, M.D.'s license?
NPPES lists Arizona license number 25961, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Jon Grossklaus, M.D. prescribe under Medicare Part D?
In 2024, David Jon Grossklaus, M.D. had 3,194 Medicare Part D claims for 955 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
What is David Jon Grossklaus, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.