2026 NPPES data Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician NPI 1730702853 MD
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MARIAN HAMAND, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in IOWA CITY, Iowa. 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
56
Medicare Part D claims · 20 beneficiaries · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician avg: 128

What the federal data shows

MARIAN HAMAND, MD filed 56 Medicare Part D claims in 2023 as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in IOWA CITY, Iowa.

56
Part D claims, 2023

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.

MARIAN HAMAND, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

56 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

MARIAN HAMAND, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MARIAN HAMAND, MD?

Quality data not reported

NPI registry status

Active

Issued 05/22/2020

NPI 1730702853

Primary specialty

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician

Mid-sized

5,062 US NPIs in this specialty

Medicare Part D claims

56 56% vs specialty avg

2023 prescription claims

Specialty avg: 128

Specialty distribution in Iowa

How Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician compares to other specialties among Iowa providers

Iowa providers

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician share within Iowa

1. Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician share within Iowa

Specialty board-certification context

Estimated specialty board-certified rate — Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician ABMS/AOA estimate

Est. board-certified rate (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician) — ABMS / AOA estimate

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).

MARIAN HAMAND, MD appears in the CMS NPPES registry as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider holding MD credentials at 200 HAWKINS DR, IOWA CITY, IA, 52242, with a listed phone of (843) 812-4289. NPI 1730702853 was issued on 05/22/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMAND 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 56 prescription claims written by this provider, covering 20 Medicare beneficiaries and totaling roughly $831 in drug spend, with an opioid prescribing rate of 28.6%. 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.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician is a mid-sized specialty nationwide, with 5,062 enrolled providers across 52 states and an average of 128 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

200 HAWKINS DR
IOWA CITY, IA 52242

Provider Details

NPI 1730702853
Specialty Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Credentials MD
Gender Female
NPI Issued 05/22/2020

Medicare Part D Prescribing Data

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

56
Total Claims
$831
Total Drug Cost
20
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
56
Total Day Supply
979
Generic Drug Cost
$793
Opioid Claims
16 (28.6% rate)

Patient Demographics

Average Patient Age
64.5 years
Avg HCC Risk Score
2.16

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Overview

How MARIAN HAMAND, MD fits within the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician landscape nationally.

5,062
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in US
52
States with Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
128
Avg Claims per Provider

MARIAN HAMAND, MD's 56 claims are below the specialty average of 128.

Nearby Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in Iowa

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

Compare Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARIAN HAMAND, MD's specialty?
MARIAN HAMAND, MD specializes in Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician and practices in IOWA CITY, Iowa. Credentials: MD.
How much does MARIAN HAMAND, MD prescribe under Medicare Part D?
In 2023, MARIAN HAMAND, MD wrote 56 Medicare Part D claims totaling $831 in drug costs for 20 beneficiaries.
Where is MARIAN HAMAND, MD located?
MARIAN HAMAND, MD is located at 200 HAWKINS DR, IOWA CITY, IA, 52242. Phone: (843) 812-4289.
What is MARIAN HAMAND, MD's NPI number?
MARIAN HAMAND, MD's National Provider Identifier (NPI) is 1730702853, issued on 05/22/2020.
Does MARIAN HAMAND, MD prescribe opioids?
Yes, MARIAN HAMAND, MD had 16 opioid claims in 2023 with an opioid prescribing rate of 28.6%.
How many Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers are there in the US?
There are 5,062 Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers across 52 states in the US. The average Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider writes 128 Medicare Part D claims per year.
Does MARIAN HAMAND, MD accept Medicare?
MARIAN HAMAND, MD appears in CMS Medicare data with 56 Part D claims and 20 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIAN HAMAND, MD's credentials?
MARIAN HAMAND, MD's NPI is 1730702853 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.
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