NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1457512089 DO
Verify on CMS → Julie Viehmann, DO
Obstetrics & Gynecology Physician in Hannibal, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 44,326 in Obstetrics & Gynecology 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
247
Medicare Part D claims · 49 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Industry payments
$392.36
24 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Julie Viehmann, DO filed 247 Medicare Part D claims in 2023 as an Obstetrics & Gynecology Physician in Hannibal, Missouri.
- 247
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥49th
- pct by Part D claim volume (lower-bound band)
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.
Julie Viehmann, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
247 ≥ 49th percentile 49% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Julie Viehmann, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Julie Viehmann, DO?
Quality data not reportedPrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
247 38% vs specialty avg
Specialty distribution in Missouri
How Obstetrics & Gynecology Physician compares to other specialties among Missouri 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 Obstetrics & Gynecology 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).
Julie Viehmann, DO appears in the CMS NPPES registry as an Obstetrics & Gynecology Physician provider holding DO credentials at 6500 HOSPITAL DR, Hannibal, MO, 63401, with a listed phone of (573) 629-3507. NPI 1457512089 was issued on 06/17/2008.
Medicare Part D records for calendar year 2023 show 247 prescription claims written by this provider, covering 49 Medicare beneficiaries and totaling roughly $37K in drug spend.
Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,326 enrolled providers across 56 states and an average of 179 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 | 1457512089 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 06/17/2008 |
Hospital and facility affiliations
Facilities where Julie Viehmann, DO 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.
Hannibal Regional Healthcare System Inc
Hannibal, MO
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 Julie Viehmann, DO. Source: openpaymentsdata.cms.gov.
Total received
$392
Largest payer
MAYNE PHARMA COMMERCIAL LLC
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.
247
Total Claims
$37K
Total Drug Cost
49
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 343
- Total Day Supply
- 8,867
- Generic Drug Cost
- $5K
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 65.4 years
- Avg HCC Risk Score
- 0.88
- Gender Split
- 100% female / 0% male
- Age Distribution
- <65: 18, 65-74: 16, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Julie Viehmann, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxybutynin Chlorid…
Oxybutynin Chloride Er
32 claims
- Fluconazole
Fluconazole
27 claims
- Myrbetriq
Myrbetriq
22 claims
- Alendronate Sodium
Alendronate Sodium
21 claims
- Combipatch 12
Combipatch
12 claims
- Estradiol 12
Estradiol
12 claims
- Imvexxy 12
Imvexxy
12 claims
- Osphena 12
Osphena
12 claims
| Drug | Claims |
|---|---|
| Oxybutynin Chloride Er Oxybutynin Chloride | 32 |
| Fluconazole | 27 |
| Myrbetriq Mirabegron | 22 |
| Alendronate Sodium | 21 |
| Combipatch Estradiol/Norethindrone Acet | 12 |
| Estradiol | 12 |
| Imvexxy Estradiol | 12 |
| Osphena Ospemifene | 12 |
| Clobetasol Propionate | 11 |
| Premarin "Estrogens | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Obstetrics & Gynecology Physician Overview
How Julie Viehmann, DO fits within the Obstetrics & Gynecology Physician landscape nationally.
44,326
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider
Julie Viehmann, DO's 247 claims are above the specialty average of 179.
Nearby Obstetrics & Gynecology Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Viehmann.
Dr. Pamela Adams
MD
Saint Louis, MO
Dr. Allie Adrian
MD
Saint Louis, MO
Dr. Mona Afrassiab
DO
Osage Beach, MO
Dr. Christoper Ahlering
M.D.
Saint Louis, MO
Dr. Sandra Ahlum
M.D.
Hannibal, MO
Compare Obstetrics & Gynecology 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 Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Obstetrics & Gynecology 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Frequently Asked Questions
What is Julie Viehmann, DO's specialty? ▼
Julie Viehmann, DO specializes in Obstetrics & Gynecology Physician and practices in Hannibal, Missouri. Credentials: DO.
How much does Julie Viehmann, DO prescribe under Medicare Part D? ▼
In 2023, Julie Viehmann, DO wrote 247 Medicare Part D claims totaling $37K in drug costs for 49 beneficiaries.
Where is Julie Viehmann, DO located? ▼
Julie Viehmann, DO is located at 6500 HOSPITAL DR, Hannibal, MO, 63401. Phone: (573) 629-3507.
What is Julie Viehmann, DO's NPI number? ▼
Julie Viehmann, DO's National Provider Identifier (NPI) is 1457512089, issued on 06/17/2008.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 44,326 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does Julie Viehmann, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Julie Viehmann, DO's most frequently prescribed drugs include Oxybutynin Chloride Er, Fluconazole, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Julie Viehmann, DO accept Medicare? ▼
Julie Viehmann, DO appears in CMS Medicare data with 247 Part D claims and 49 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Julie Viehmann, DO's credentials? ▼
Julie Viehmann, DO's NPI is 1457512089 with credentials DO. 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
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.