NPI registry status
Active
2026 NPPES data Obstetrics & Gynecology Physician NPI 1093196164 D.O.
Verify on CMS → Laura Ambler, D.O.
Obstetrics & Gynecology Physician in Eau Claire, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 44,313 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
114
Medicare Part D claims · 29 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
84%
generic claims · 16% 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
Laura Ambler, D.O. filed 114 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in Eau Claire, Wisconsin, prescribing 84% generic.
- 114
- Part D claims, 2023
- 84%
- generic prescribing
- 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.
Laura Ambler, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
114 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 certification likely (heuristic, not verified)
Laura Ambler, D.O. 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 Laura Ambler, D.O.?
Quality data not reportedPrimary specialty
Obstetrics & Gynecology Physician
Medicare Part D claims
114 36% vs specialty avg
Specialty distribution in Wisconsin
How Obstetrics & Gynecology Physician compares to other specialties among Wisconsin 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).
Laura Ambler, D.O. appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding D.O. credentials at 1400 BELLINGER ST, Eau Claire, WI, 54703, with a listed phone of (715) 838-5222. NPI 1093196164 was issued on 06/15/2015.
Medicare Part D records for calendar year 2023 show 114 prescription claims written by this provider, covering 29 Medicare beneficiaries and totaling roughly $12K in drug spend, split 16% brand-name and 84% generic by claim count.
Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 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 | 1093196164 |
|---|---|
| Specialty | Obstetrics & Gynecology Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 06/15/2015 |
Hospital and facility affiliations
Facilities where Laura Ambler, D.O. 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.
Mayo Clinic Health System-Northwest Wisconsin Region Inc
Eau Claire, WI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Laura Ambler, D.O. - brand share 16.0%
Obstetrics & Gynecology Physician average
16% brand-name claims vs 84% generic, on 114 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.
114
Total Claims
$12K
Total Drug Cost
29
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 173
- Total Day Supply
- 4,628
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 62.3 years
- Avg HCC Risk Score
- 0.97
- Gender Split
- 100% female / 0% male
- Age Distribution
- <65: 13, 65-74: 11, 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.
| Drug | Claims |
|---|---|
| Estradiol | 17 |
| Gabapentin | 12 |
| 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 Laura Ambler, D.O. fits within the Obstetrics & Gynecology Physician landscape nationally.
44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider
Laura Ambler, D.O.'s 114 claims are below the specialty average of 179.
Nearby Obstetrics & Gynecology Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Ambler.
Dr. Tahmina Aafreen
M.D.
Watertown, WI
Dr. Samir Abadeer
MD
Wausau, WI
Dr. Leslie Abitz
MD
Sheboygan, WI
Dr. Bruce Abrams
MD
Rhinelander, WI
Dr. Ernesto Acosta
MD
Appleton, WI
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 Wisconsin 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.
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Frequently Asked Questions
What is Laura Ambler, D.O.'s specialty? ▼
Laura Ambler, D.O. specializes in Obstetrics & Gynecology Physician and practices in Eau Claire, Wisconsin. Credentials: D.O..
How much does Laura Ambler, D.O. prescribe under Medicare Part D? ▼
In 2023, Laura Ambler, D.O. wrote 114 Medicare Part D claims totaling $12K in drug costs for 29 beneficiaries.
Where is Laura Ambler, D.O. located? ▼
Laura Ambler, D.O. is located at 1400 BELLINGER ST, Eau Claire, WI, 54703. Phone: (715) 838-5222.
What is Laura Ambler, D.O.'s NPI number? ▼
Laura Ambler, D.O.'s National Provider Identifier (NPI) is 1093196164, issued on 06/15/2015.
Does Laura Ambler, D.O. prescribe more brand-name or generic drugs? ▼
Laura Ambler, D.O.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $6K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US? ▼
There are 44,313 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 Laura Ambler, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Laura Ambler, D.O.'s most frequently prescribed drugs include Estradiol, Gabapentin, Premarin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Laura Ambler, D.O. accept Medicare? ▼
Laura Ambler, D.O. appears in CMS Medicare data with 114 Part D claims and 29 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Laura Ambler, D.O.'s credentials? ▼
Laura Ambler, D.O.'s NPI is 1093196164 with credentials D.O.. 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.