2026 NPPES data Urology Physician NPI 1750355392 M.D.
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DAVID GROSSKLAUS, M.D.

Urology Physician in MESA, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 910 beneficiaries · Urology Physician avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$515.67
31 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

DAVID GROSSKLAUS, M.D. reported a CMS MIPS final score of 100/100 — above the 83.1 national average — and filed 3,181 Medicare Part D claims in 2023.

100/100
MIPS score · +17 vs avg
3K
Part D claims, 2023
95%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

DAVID GROSSKLAUS, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

100 Top 7% higher than 93% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

DAVID GROSSKLAUS, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about DAVID GROSSKLAUS, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 02/13/2006

NPI 1750355392

Primary specialty

Urology Physician

Mid-sized

13,350 US NPIs in this specialty

Medicare Part D claims

3,181 149% vs specialty avg

2023 prescription claims

Specialty avg: 1,280

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Arizona

How Urology Physician compares to other specialties among Arizona providers

Arizona providers

Urology Physician share within Arizona

1. Urology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Urology Physician share within Arizona

Medicare quality performance — MIPS

DAVID GROSSKLAUS, M.D.'s 2023 MIPS final score plotted against the Urology Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Urology Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Urology Physician) — 100/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

DAVID GROSSKLAUS, M.D. appears in the CMS NPPES registry as a Urology Physician provider holding M.D. credentials at 6007 E BASELINE RD, MESA, AZ, 85206, with a listed phone of (480) 897-2727. NPI 1750355392 was issued on 02/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GROSSKLAUS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 3,181 prescription claims written by this provider, covering 910 Medicare beneficiaries and totaling roughly $192K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 5.9%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.

Urology Physician is a mid-sized specialty nationwide, with 13,350 enrolled providers across 54 states and an average of 1,280 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

6007 E BASELINE RD
MESA, AZ 85206

Provider Details

NPI 1750355392
Specialty Urology Physician
Credentials M.D.
Gender Male
NPI Issued 02/13/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

100
Final Score
Avg: 83.1
100
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where DAVID GROSSKLAUS, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

DAVID J. GROSSKLAUS, M.D.,P.C.
MESA, AZ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for DAVID GROSSKLAUS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$516

Largest payer

ABBVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

DAVID GROSSKLAUS, M.D. — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 3,181 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

3,181
Total Claims
$192K
Total Drug Cost
910
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,746
Total Day Supply
182,665
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$122K
Generic Drug Cost
$70K
Opioid Claims
189 (5.9% rate)
Antibiotic Claims
559

Patient Demographics

Average Patient Age
76.3 years
Avg HCC Risk Score
1.25
Gender Split
13% female / 87% male
Age Distribution
<65: 16, 65-74: 367, 75-84: 405, 85+: 122

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What DAVID GROSSKLAUS, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Alfuzosin Hcl Er
Alfuzosin Hcl
846
Tamsulosin Hcl
468
Finasteride
346
Ciprofloxacin Hcl
341
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
138
Oxybutynin Chloride
136
Myrbetriq
Mirabegron
68
Sildenafil Citrate
55
Testosterone Cypionate
55
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
51

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Urology Physician Overview

How DAVID GROSSKLAUS, M.D. fits within the Urology Physician landscape nationally.

13,350
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider

DAVID GROSSKLAUS, M.D.'s 3,181 claims are above the specialty average of 1,280.

Nearby Urology Physician Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as GROSSKLAUS.

Compare Urology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVID GROSSKLAUS, M.D.'s specialty?
DAVID GROSSKLAUS, M.D. specializes in Urology Physician and practices in MESA, Arizona. Credentials: M.D..
How much does DAVID GROSSKLAUS, M.D. prescribe under Medicare Part D?
In 2023, DAVID GROSSKLAUS, M.D. wrote 3,181 Medicare Part D claims totaling $192K in drug costs for 910 beneficiaries.
What is DAVID GROSSKLAUS, M.D.'s Medicare quality score?
DAVID GROSSKLAUS, M.D. has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DAVID GROSSKLAUS, M.D. located?
DAVID GROSSKLAUS, M.D. is located at 6007 E BASELINE RD, MESA, AZ, 85206. Phone: (480) 897-2727.
What is DAVID GROSSKLAUS, M.D.'s NPI number?
DAVID GROSSKLAUS, M.D.'s National Provider Identifier (NPI) is 1750355392, issued on 02/13/2006.
Does DAVID GROSSKLAUS, M.D. prescribe more brand-name or generic drugs?
DAVID GROSSKLAUS, M.D.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $122K in brand drug costs.
Does DAVID GROSSKLAUS, M.D. prescribe opioids?
Yes, DAVID GROSSKLAUS, M.D. had 189 opioid claims in 2023 with an opioid prescribing rate of 5.9%.
How many Urology Physician providers are there in the US?
There are 13,350 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
What drugs does DAVID GROSSKLAUS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DAVID GROSSKLAUS, M.D.'s most frequently prescribed drugs include Alfuzosin Hcl Er, Tamsulosin Hcl, Finasteride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID GROSSKLAUS, M.D. accept Medicare?
DAVID GROSSKLAUS, M.D. appears in CMS Medicare data with 3,181 Part D claims and 910 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID GROSSKLAUS, M.D.'s credentials?
DAVID GROSSKLAUS, M.D.'s NPI is 1750355392 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology