NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1033169768 M.D.
Verify on CMS → Christine Holm, M.D.
Hematology & Oncology Physician in Dubuque, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,232 in Hematology & Oncology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
123
Medicare Part D claims · 35 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Christine Holm, M.D. filed 123 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Dubuque, Iowa, prescribing 68% generic.
- 123
- Part D claims, 2023
- 68%
- generic prescribing
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.
Christine Holm, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
123 35th percentile higher than 35% of 1,370,886 prescribers
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)
Christine Holm, M.D. 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 Christine Holm, M.D.?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
123 85% vs specialty avg
Specialty distribution in Iowa
How Hematology & Oncology Physician compares to other specialties among Iowa providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hematology & Oncology Physician. Verify directly:
How MIPS and board certification work
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).
Christine Holm, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 150 MERCY DR., Dubuque, IA, 52001, with a listed phone of (563) 584-3480. NPI 1033169768 was issued on 05/11/2006.
Medicare Part D records for calendar year 2023 show 123 prescription claims written by this provider, covering 35 Medicare beneficiaries and totaling roughly $25K in drug spend, split 32% brand-name and 68% generic by claim count.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,232 enrolled providers across 54 states and an average of 847 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
Provider Details
| NPI | 1033169768 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 05/11/2006 |
Brand vs generic prescribing mix · Above average
Christine Holm, M.D. - brand share 32.0%
Hematology & Oncology Physician average
32% brand-name claims vs 68% generic, on 123 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.
123
Total Claims
$25K
Total Drug Cost
35
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 217
- Total Day Supply
- 5,828
- Brand vs Generic
- 32% brand / 68% generic
- Brand Drug Cost
- $23K
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 76.4 years
- Avg HCC Risk Score
- 1.57
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Anastrozole | 59 |
| Xarelto Rivaroxaban | 35 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Christine Holm, M.D. fits within the Hematology & Oncology Physician landscape nationally.
11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Christine Holm, M.D.'s 123 claims are below the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Holm.
Dr. Anoop Aggarwal
M.D.
Clinton, IA
Dr. Saramma Alexander
MD
Des Moines, IA
Dr. Kartik Anand
MD
West Des Moines, IA
Dr. Robert Behrens
MD
Des Moines, IA
Loren Brown
Des Moines, IA
Compare Hematology & Oncology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Iowa medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology & Oncology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Christine Holm, M.D.'s specialty? ▼
Christine Holm, M.D. specializes in Hematology & Oncology Physician and practices in Dubuque, Iowa. Credentials: M.D..
How much does Christine Holm, M.D. prescribe under Medicare Part D? ▼
In 2023, Christine Holm, M.D. wrote 123 Medicare Part D claims totaling $25K in drug costs for 35 beneficiaries.
Where is Christine Holm, M.D. located? ▼
Christine Holm, M.D. is located at 150 MERCY DR., Dubuque, IA, 52001. Phone: (563) 584-3480.
What is Christine Holm, M.D.'s NPI number? ▼
Christine Holm, M.D.'s National Provider Identifier (NPI) is 1033169768, issued on 05/11/2006.
Does Christine Holm, M.D. prescribe more brand-name or generic drugs? ▼
Christine Holm, M.D.'s prescribing is 32% brand-name and 68% generic drugs by claim count, with $23K in brand drug costs.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Christine Holm, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Christine Holm, M.D.'s most frequently prescribed drugs include Anastrozole, Xarelto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christine Holm, M.D. accept Medicare? ▼
Christine Holm, M.D. appears in CMS Medicare data with 123 Part D claims and 35 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christine Holm, M.D.'s credentials? ▼
Christine Holm, M.D.'s NPI is 1033169768 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.