NPPES file of Aug 9, 2026

Dennis William Merski, D.O.

Obstetrics Physician · McMinnville, TN

Dennis William Merski, D.O. is an obstetrics physician with a practice address in McMinnville, Tennessee, and NPI 1871702464, issued on May 21, 2007. Check the license (Tennessee 2209, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871702464
Name
Dennis William Merski
Credential
D.O.
Primary taxonomy
Obstetrics Physician 207VX0000X
License numbers
2209 TN
34.011034 OH
Self-reported in NPPES; status is on the state search
Practice location
1589 Sparta St Ste 104, McMinnville, TN 37110
Phone
(931) 473-4714
Enumerated
May 21, 2007
Record last updated
Jan 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(931) 815-5060
Medicaid IDs
Q047309 TN
0095803 OH
3810026907 WV
Medicare enrollment
Enrolled (PECOS I20140108001956); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Erie, 2003
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1589 Sparta St Ste 104

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gabrielle Hall, PHARMDPharmacist1295545465

Verify Dennis William Merski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 2209
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

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9% fewer Medicare Part D claims than the average obstetrics physician in 2024

198 Medicare Part D claims for 37 beneficiaries, against an average of 218 among the 863 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Dennis Merski198
  2. Specialty average218

Most prescribed

  1. Alendronate Sodium35 claims
  2. Estradiol28 claims
  3. Premarin23 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $76.76

3 payments; by number, the most common kind was food and beverage; the largest payer was Organon Llc. The 679 providers of this specialty with any payment received $826.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dennis Merski$76.76
  2. Specialty average$826.19

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Blanchard Valley Medical Practice LLCFindlay, OH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dennis William Merski among 28 obstetrics physician records in Tennessee

Dennis William Merski, D.O. is one of 28 obstetrics physician records with a practice address in Tennessee. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 57% of them.

  • NPI issued2007 · 57% of these records are older, 32% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2003 · median 2000 among the 18 with a school on file
  • Record last updated2020 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in Tennessee

There are 28 obstetrics physician records in Tennessee.

The 8 obstetrics physician records with the nearest ZIP codes

  1. George Fox, M.D.Smyrna, TN 371671568412393
  2. Stephanie Dallas, M.D.Nashville, TN 372321588083943
  3. Lisa Phillips, MDNashville, TN 372321588684849
  4. Riley Hay, RNNashville, TN 372361659267946
  5. Tessa Eckhardt, NPOoltewah, TN 373631275186504
  6. Stephanie HuskinsOoltewah, TN 373631104242262
  7. Olukayode Akinlaja, M.D.Chattanooga, TN 374031093981284
  8. John Adams, MDChattanooga, TN 374121003880493

Common questions

What is Dennis William Merski, D.O.'s NPI number?

Dennis William Merski, D.O.'s National Provider Identifier (NPI) is 1871702464, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dennis William Merski, D.O. located?

The NPPES record lists a practice address at 1589 Sparta St Ste 104, McMinnville, TN, 37110. Phone: (931) 473-4714. Providers update this record themselves, so call before visiting.

How can I verify Dennis William Merski, D.O.'s license?

NPPES lists Tennessee license number 2209, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dennis William Merski, D.O. prescribe under Medicare Part D?

In 2024, Dennis William Merski, D.O. had 198 Medicare Part D claims for 37 beneficiaries; the average among obstetrics physician prescribers was 218. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.