2026 NPPES data Orthopaedic Surgery of the Spine Physician NPI 1003817602 MD
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STEVEN ZEILLER, MD

Orthopaedic Surgery of the Spine Physician in TUCSON, 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
487
Medicare Part D claims · 265 beneficiaries · Orthopaedic Surgery of the Spine Physician avg: 362
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$195.87
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: STEVEN ZEILLER, MD is a Orthopaedic Surgery of the Spine Physician ([object Object]) practicing in TUCSON, Arizona with a Medicare Part D prescribing footprint of 487 claims across 265 beneficiaries . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $195.87 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: STEVEN ZEILLER, MD reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 487 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

STEVEN ZEILLER, MD 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).

STEVEN ZEILLER, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 08/03/2005

NPI 1003817602

Primary specialty

Orthopaedic Surgery of the Spine Physician

Niche

1,773 US NPIs in this specialty

Medicare Part D claims

487 35% vs specialty avg

2023 prescription claims

Specialty avg: 362

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Arizona

How Orthopaedic Surgery of the Spine Physician compares to other specialties among Arizona providers

Arizona providers

Orthopaedic Surgery of the Spine Physician share within Arizona

1. Orthopaedic Surgery of the Spine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopaedic Surgery of the Spine Physician share within Arizona

Medicare quality performance — MIPS

STEVEN ZEILLER, MD's 2023 MIPS final score plotted against the Orthopaedic Surgery of the Spine Physician national average

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

MIPS final score (Orthopaedic Surgery of the Spine Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Orthopaedic Surgery of the Spine 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).

STEVEN ZEILLER, MD is a Orthopaedic Surgery of the Spine Physician provider practicing in TUCSON, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1003817602. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

STEVEN ZEILLER, MD appears in the CMS NPPES registry as a Orthopaedic Surgery of the Spine Physician provider holding MD credentials at 6320 N. LA CHOLLA BLVD, TUCSON, AZ, 85741, with a listed phone of (520) 382-8200. NPI 1003817602 was issued on 08/03/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZEILLER 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 487 prescription claims written by this provider, covering 265 Medicare beneficiaries and totaling roughly $4K in drug spend, with an opioid prescribing rate of 29.4%. 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, compared with the national average of 83.1.

Orthopaedic Surgery of the Spine Physician is a narrow specialty nationwide, with 1,773 enrolled providers across 51 states and an average of 362 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

6320 N. LA CHOLLA BLVD
TUCSON, AZ 85741

Provider Details

NPI 1003817602
Specialty Orthopaedic Surgery of the Spine Physician
Credentials MD
Gender Male
NPI Issued 08/03/2005

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where STEVEN ZEILLER, MD 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.

TUCSON ORTHOPAEDIC INSTITUTE PROFESSIONAL CORPORATION
ORO VALLEY, 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 STEVEN ZEILLER, MD. Source: openpaymentsdata.cms.gov.

Total received

$196

Largest payer

Integrity Implants Inc. dba Accelus

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.

Medicare Part D Prescribing Data

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

487
Total Claims
$4K
Total Drug Cost
265
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
495
Total Day Supply
6,799
Generic Drug Cost
$4K
Opioid Claims
143 (29.4% rate)

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
0.95
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Methylprednisolone
146
Meloxicam
99
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
55
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
50
Tramadol Hcl
36
Gabapentin
34
Methocarbamol
25
Cyclobenzaprine Hcl
14

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

Orthopaedic Surgery of the Spine Physician Overview

How STEVEN ZEILLER, MD fits within the Orthopaedic Surgery of the Spine Physician landscape nationally.

1,773
Orthopaedic Surgery of the Spine Physician Providers in US
51
States with Orthopaedic Surgery of the Spine Physician
362
Avg Claims per Provider

STEVEN ZEILLER, MD's 487 claims are above the specialty average of 362.

Nearby Orthopaedic Surgery of the Spine Physician Providers in Arizona

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

Compare Orthopaedic Surgery of the Spine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEVEN ZEILLER, MD's specialty?
STEVEN ZEILLER, MD specializes in Orthopaedic Surgery of the Spine Physician and practices in TUCSON, Arizona. Credentials: MD.
How much does STEVEN ZEILLER, MD prescribe under Medicare Part D?
In 2023, STEVEN ZEILLER, MD wrote 487 Medicare Part D claims totaling $4K in drug costs for 265 beneficiaries.
What is STEVEN ZEILLER, MD's Medicare quality score?
STEVEN ZEILLER, MD has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is STEVEN ZEILLER, MD located?
STEVEN ZEILLER, MD is located at 6320 N. LA CHOLLA BLVD, TUCSON, AZ, 85741. Phone: (520) 382-8200.
What is STEVEN ZEILLER, MD's NPI number?
STEVEN ZEILLER, MD's National Provider Identifier (NPI) is 1003817602, issued on 08/03/2005.
Does STEVEN ZEILLER, MD prescribe opioids?
Yes, STEVEN ZEILLER, MD had 143 opioid claims in 2023 with an opioid prescribing rate of 29.4%.
How many Orthopaedic Surgery of the Spine Physician providers are there in the US?
There are 1,773 Orthopaedic Surgery of the Spine Physician providers across 51 states in the US. The average Orthopaedic Surgery of the Spine Physician provider writes 362 Medicare Part D claims per year.
What drugs does STEVEN ZEILLER, MD prescribe most often?
Based on 2023 Medicare Part D data, STEVEN ZEILLER, MD's most frequently prescribed drugs include Methylprednisolone, Meloxicam, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEVEN ZEILLER, MD accept Medicare?
STEVEN ZEILLER, MD appears in CMS Medicare data with 487 Part D claims and 265 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEVEN ZEILLER, MD's credentials?
STEVEN ZEILLER, MD's NPI is 1003817602 with credentials MD. 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