NPI registry status
Active
2026 NPPES data Urology Physician NPI 1629194030 MD
Verify on CMS → Christopher Hempel, MD
Urology Physician in Everett, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 13,350 in Urology 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
1K
Medicare Part D claims · 370 beneficiaries · Urology Physician avg: 1K
Industry payments
$321.21
4 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Christopher Hempel, MD filed 1,407 Medicare Part D claims in 2023 as a Urology Physician in Everett, Washington.
- 1K
- Part D claims, 2023
- 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.
Christopher Hempel, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,407 Top 20% higher than 80% 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 certification likely (heuristic, not verified)
Christopher Hempel, MD 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 Christopher Hempel, MD?
Quality data not reportedPrimary specialty
Urology Physician
Medicare Part D claims
1,407 10% vs specialty avg
Specialty distribution in Washington
How Urology Physician compares to other specialties among Washington 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 Urology 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).
Christopher Hempel, MD appears in the CMS NPPES registry as a Urology Physician provider holding MD credentials at 3901 HOYT AVE, Everett, WA, 98201, with a listed phone of (425) 339-5443. NPI 1629194030 was issued on 03/21/2007.
Medicare Part D records for calendar year 2023 show 1,407 prescription claims written by this provider, covering 370 Medicare beneficiaries and totaling roughly $74K in drug spend, with an opioid prescribing rate of 5.0%.
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
Provider Details
| NPI | 1629194030 |
|---|---|
| Specialty | Urology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 03/21/2007 |
Hospital and facility affiliations
Facilities where Christopher Hempel, 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.
Optum Care Washington PLLC
Everett, WA
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 Christopher Hempel, MD. Source: openpaymentsdata.cms.gov.
Total received
$321
Largest payer
UROGEN PHARMA, 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.
License & disciplinary context - Washington WMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Christopher Hempel, MD. To verify Christopher Hempel, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,407
Total Claims
$74K
Total Drug Cost
370
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,614
- Total Day Supply
- 71,723
- Generic Drug Cost
- $27K
- Opioid Claims
- 70 (5.0% rate)
- Antibiotic Claims
- 205
Patient Demographics
- Average Patient Age
- 74.7 years
- Avg HCC Risk Score
- 1.47
- Gender Split
- 14% female / 86% male
- Age Distribution
- <65: 15, 65-74: 170, 75-84: 149, 85+: 36
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Christopher Hempel, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Tamsulosin Hcl
Tamsulosin Hcl
507 claims
- Finasteride
Finasteride
220 claims
- Ciprofloxacin Hcl 105
Ciprofloxacin Hcl
105 claims
- Oxybutynin Chlorid… 101
Oxybutynin Chloride Er
101 claims
- Myrbetriq 78
Myrbetriq
78 claims
- Oxycodone Hcl 57
Oxycodone Hcl
57 claims
- Cephalexin 51
Cephalexin
51 claims
- Doxazosin Mesylate 39
Doxazosin Mesylate
39 claims
| Drug | Claims |
|---|---|
| Tamsulosin Hcl | 507 |
| Finasteride | 220 |
| Ciprofloxacin Hcl | 105 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 101 |
| Myrbetriq Mirabegron | 78 |
| Oxycodone Hcl | 57 |
| Cephalexin | 51 |
| Doxazosin Mesylate | 39 |
| Alfuzosin Hcl Er Alfuzosin Hcl | 31 |
| Pentoxifylline | 30 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Urology Physician Overview
How Christopher Hempel, MD 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
Christopher Hempel, MD's 1,407 claims are above the specialty average of 1,280.
Nearby Urology Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Hempel.
Dr. Alejandro Abello Martinez
MD MPH
Seattle, WA
Dr. Nehizena Aihie
MD
Seattle, WA
Dr. Olutiwa Akinsola
MD
Seattle, WA
Dr. Mihai Alexianu
M.D.
Spokane, WA
Dr. Mark Anderson
M.D.
Port Orchard, WA
Compare Urology 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 Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Urology 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Christopher Hempel, MD's specialty? ▼
Christopher Hempel, MD specializes in Urology Physician and practices in Everett, Washington. Credentials: MD.
How much does Christopher Hempel, MD prescribe under Medicare Part D? ▼
In 2023, Christopher Hempel, MD wrote 1,407 Medicare Part D claims totaling $74K in drug costs for 370 beneficiaries.
Where is Christopher Hempel, MD located? ▼
Christopher Hempel, MD is located at 3901 HOYT AVE, Everett, WA, 98201. Phone: (425) 339-5443.
What is Christopher Hempel, MD's NPI number? ▼
Christopher Hempel, MD's National Provider Identifier (NPI) is 1629194030, issued on 03/21/2007.
Does Christopher Hempel, MD prescribe opioids? ▼
Yes, Christopher Hempel, MD had 70 opioid claims in 2023 with an opioid prescribing rate of 5.0%.
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 Christopher Hempel, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Christopher Hempel, MD's most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Ciprofloxacin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Hempel, MD accept Medicare? ▼
Christopher Hempel, MD appears in CMS Medicare data with 1,407 Part D claims and 370 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Hempel, MD's credentials? ▼
Christopher Hempel, MD's NPI is 1629194030 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
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.