Dr. Dennis William Merski, DO
- Medicare services, 2024
- 12
- Medicare patients, 2024
- 21
- Part D claims, 2024
- 198
- Hospital affiliations
- 1
- Industry payments
- $1,432
- Practice address
- 301 W Wallace St, Findlay, OH 45840
- Practice phone
- Call (419) 423-4500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Blanchard Valley Medical Practice
Findlay, Ohio
Find Dr. Merski's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Dennis William Merski is an obstetrics physician in Findlay, Ohio
Dr. Merski practices at Blanchard Valley Medical Practice in Findlay, Ohio.
Dr. Merski's NPI, 1871702464, was assigned on May 21, 2007. Dr. Merski graduated from Lake Erie College of Osteopathic Medicine, Erie in 2003. Dr. Merski holds Tennessee license 2209.
- NPI
- 1871702464NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264503820
- NPI enumeration date
- May 21, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (419) 423-4500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dennis William Merski practices at Blanchard Valley Medical Practice in Findlay, Ohio
Dr. Merski's primary practice is Blanchard Valley Medical Practice, at 301 W Wallace St, Findlay, OH 45840 in Hancock County. The practice phone is (419) 423-4500.
- Blanchard Valley Medical Practice301 W Wallace St, Findlay, OH 45840 · Hancock CountyPhone(419) 423-4500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Dennis William Merski is affiliated with 3 sites of care and 2 medical groups
Dr. Merski's primary practice is Blanchard Valley Medical Practice in Findlay, Ohio. Dr. Merski is also affiliated with Blanchard Valley Hospital. The medical group on file is Blanchard Valley Medical Practices. Dmand AI also links Dr. Merski to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Dennis William Merski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Merski practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Blanchard Valley Medical Practice | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dennis William Merski is one of 44 obstetrics physicians in Ohio
Obstetrics is Dr. Merski's primary specialty in the NPI Registry, under taxonomy code 207VX0000X. Dmand AI has Dr. Merski's licenses on file in 2 states: Tennessee and Ohio.
Specialties and state licenses
- Obstetrics, TennesseePrimary
- Obstetrics and gynecology, Ohio
Obstetrics physicians near Dr. Merski
Counts of obstetrics physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Dennis William Merski billed Medicare for 12 services in 2024
CMS data shows 12 Medicare services from Dr. Merski across 1 procedure code in 2024, for 21 Medicare patients. Medicare paid $423 for them. Every service was in an office.
Dr. Merski's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Other services
- 2022: 152024: 1220%
Dr. Merski compared with the Ohio median for obstetrics physicians, 2024
- Dr. Merski
- Ohio median
- Medicare services
- 12vs 5176% below
- Medicare patients
- 21vs 4048% below
- Part D claims
- 86vs 5169% above
Medians across 38 obstetrics physicians in Ohio with Dmand AI profiles that report each measure.
Dr. Merski's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Merski and other obstetrics physicians in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dennis William Merski treated 21 Medicare patients in 2024, average age 63
CMS counts 21 Medicare patients who saw Dr. Merski in 2024. 67% of them have high blood pressure, and 57% have high cholesterol. Their average risk score is 0.75, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Merski's median patient age at 31, with 99% women.
Chronic conditions among Dr. Merski's Medicare patients, 2024
- High blood pressure67%
- High cholesterol57%
Share of Medicare patients with each condition. A patient can have several.
Dr. Merski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women99%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dennis William Merski wrote 198 Medicare Part D claims in 2024
In 2024, Dr. Merski wrote 198 Medicare Part D claims for 37 patients. 78% of them were for generic drugs. CMS names the drug for 86 of them, across 3 drugs with 11 or more claims each, at $6,265 in total drug cost. In 2023, CMS named 141 claims across 7 drugs.
Dr. Merski's Part D claims by kind of drug, 2024
- Generic155 claims78%
- Brand-name43 claims22%
Dr. Merski's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1412024: 8639%
Drugs named by CMS: 3 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Dennis William Merski takes part in Medicare
Dr. Merski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Dennis William Merski received $1,432 in industry payments from 2016 to 2025
CMS Open Payments shows 36 general payments to Dr. Merski from 17 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 64% of the total. Intuitive Surgical, Inc. paid the most, $917.
General payments to Dr. Merski by program year, 2016 to 2025
General payments to Dr. Merski by kind, 2016 to 2025
- Travel and lodging$91764%
- Food and beverage$48834%
- Education$272%
Companies that paid Dr. Merski the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Dennis William Merski graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Merski graduated from Lake Erie College of Osteopathic Medicine, Erie in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Dennis William Merski's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Dennis William Merski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Dennis William Merski's NPI number?
Dr. Dennis William Merski's NPI number is 1871702464. It was assigned on May 21, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Dennis William Merski?
Dr. Dennis William Merski is an obstetrics physician in Findlay, Ohio. The primary specialty in the NPI Registry is Obstetrics Physician (taxonomy code 207VX0000X).
Where does Dr. Dennis William Merski practice?
Dr. Merski practices at 301 W Wallace St, Findlay, OH 45840. Dr. Merski's primary practice is Blanchard Valley Medical Practice in Findlay, Ohio. Dmand AI also links Dr. Merski to 1 group practice or clinic and 1 medical group.
What is Dr. Dennis William Merski's office phone number?
The practice phone on file for Dr. Merski is (419) 423-4500.
What is Dr. Dennis William Merski's medical license number?
Dr. Merski holds Tennessee license 2209, one of the licenses on file in 2 states.
Which states has Dr. Dennis William Merski been licensed in?
Dmand AI has state licenses on file for Dr. Merski in Tennessee and Ohio.
Which hospitals is Dr. Dennis William Merski affiliated with?
Dr. Merski is affiliated with Blanchard Valley Hospital.
What medical group is Dr. Dennis William Merski part of?
Dr. Merski is linked to Blanchard Valley Medical Practices. Dmand AI links Dr. Merski to 1 more medical group.
Does Dr. Dennis William Merski accept Medicare?
Yes. CMS data shows Dr. Merski billed Medicare for 12 services in 2024, and Dr. Merski accepts Medicare assignment.
How many Medicare patients does Dr. Dennis William Merski see?
CMS counts 21 Medicare patients who saw Dr. Merski in 2024, with an average age of 63.
Show 5 more questionsShow fewer questions
What services does Dr. Dennis William Merski bill to Medicare?
In 2024, Dr. Merski's most billed Medicare services were medicare service (G0101).
Where did Dr. Dennis William Merski go to medical school?
Dr. Merski graduated from Lake Erie College of Osteopathic Medicine, Erie in 2003.
What drugs does Dr. Dennis William Merski prescribe most?
In 2024 Medicare Part D data, Dr. Merski's most prescribed drugs by claims were Alendronate Sodium, Estradiol and Premarin.
Has Dr. Dennis William Merski received payments from drug or device companies?
CMS Open Payments shows $1,432 in general payments to Dr. Merski from 17 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Dennis William Merski been practicing?
Dr. Merski graduated from medical school in 2003, 23 years ago.
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