Dr. Mark E. Gentry, MD

  • Plainfield, IN
  • OB-GYN
NPI1144260191PAC ID6507915014
Medicare services, 2024
169
Medicare patients, 2024
66
Part D claims, 2024
239
Hospital affiliations
1
Industry payments
$8,430
Practice address
1100 Southfield Dr, Plainfield, IN 46168
Practice phone
Call (317) 745-3366
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

New Life Associates

Plainfield, Indiana

See all 4 affiliations

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Dr. Mark E. Gentry is an OB-GYN in Plainfield, Indiana

Dr. Gentry practices at New Life Associates in Plainfield, Indiana.

Dr. Gentry's NPI, 1144260191, was assigned on June 7, 2006. Dr. Gentry graduated from Indiana University School of Medicine in 1986. Dr. Gentry holds Indiana license 01036942.

NPI and contact details
Medicare PAC ID
6507915014
NPI enumeration date
June 7, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(317) 745-3366
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
66
Medical school graduation
1986

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark E. Gentry practices at New Life Associates in Plainfield, Indiana

Dr. Gentry's primary practice is New Life Associates, at 1100 Southfield Dr, Plainfield, IN 46168 in Hendricks County. The practice phone is (317) 745-3366.

  • New Life Associates
    1100 Southfield Dr, Plainfield, IN 46168 · Hendricks CountyPhone(317) 745-3366

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Mark E. Gentry is affiliated with 3 sites of care and 1 medical group

Dr. Gentry's primary practice is New Life Associates in Plainfield, Indiana. Dr. Gentry is also affiliated with Hendricks Regional Health Danville Hospital. The medical group on file is Hendricks Rheumatology. Dmand AI also links Dr. Gentry to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Dr. Gentry

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Mark E. Gentry's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gentry practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
New Life AssociatesAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mark E. Gentry is one of 741 OB-GYNs in Indiana

Obstetrics and gynecology is Dr. Gentry's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Gentry is licensed in Indiana.

Specialties and state licenses

  • Obstetrics and gynecology, IndianaPrimaryLicense 01036942 · taxonomy 207V00000X

OB-GYNs near Dr. Gentry

Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.

741OB-GYNs in Indiana
4OB-GYNs in Plainfield

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Mark E. Gentry billed Medicare for 169 services in 2024

CMS data shows 169 Medicare services from Dr. Gentry across 5 procedure codes in 2024, for 66 Medicare patients. Medicare paid $8,387 for them. Every service was in an office.

Medicare services, 2024169
Medicare patients66
Paid by Medicare$8,387
Procedure codes5

Dr. Gentry's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 662024: 12691%
Other services
2023: 142024: 2257%
Imaging
2023: 172024: 2124%

Dr. Gentry compared with the Indiana median for OB-GYNs, 2024

  • Dr. Gentry
  • Indiana median
Medicare services
169vs 414.1 times
Medicare patients
66vs 3494% above
Part D claims
99vs 352.8 times

Medians across 674 OB-GYNs in Indiana with Dmand AI profiles that report each measure.

Dr. Gentry'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.

See all procedures by Dr. Gentry

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mark E. Gentry treated 66 Medicare patients in 2024, average age 70

CMS counts 66 Medicare patients who saw Dr. Gentry in 2024. The largest group is 65 to 74, with 35 patients. 61% of them have high cholesterol, and 56% have high blood pressure. Their average risk score is 0.85, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Gentry's median patient age at 57, with 100% women.

Medicare patients, 202466
Average age70
Average risk score0.85

Dr. Gentry's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Gentry's Medicare patients, 2024

  1. High cholesterol61%
  2. High blood pressure56%
  3. Arthritis38%
  4. Diabetes18%
  5. Chronic kidney disease17%

Share of Medicare patients with each condition. A patient can have several.

Dr. Gentry's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 57

Patient panel by sex, all payers

  • Women100%
  • Men0%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mark E. Gentry wrote 239 Medicare Part D claims in 2024

In 2024, Dr. Gentry wrote 239 Medicare Part D claims for 73 patients. 82% of them were for generic drugs. CMS names the drug for 99 of them, across 5 drugs with 11 or more claims each, at $7,424 in total drug cost. In 2023, CMS named 66 claims across 4 drugs.

Part D claims, 2024239
Drugs named by CMS5
Total drug cost$7,424
Part D patients73

Dr. Gentry's Part D claims by kind of drug, 2024

  • Generic196 claims82%
  • Brand-name43 claims18%

Dr. Gentry'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: 662024: 9950%

Drugs named by CMS: 5 in 2024, 4 in 2023.

See all prescribing by Dr. Gentry

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. Mark E. Gentry takes part in Medicare

Dr. Gentry 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. Mark E. Gentry received $8,430 in industry payments from 2016 to 2025

CMS Open Payments shows 260 general payments to Dr. Gentry from 46 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 61% of the total. Roche Diagnostics Corporation paid the most, $3,326.

General payments to Dr. Gentry by program year, 2016 to 2025

General payments to Dr. Gentry by kind, 2016 to 2025

$8.4Kin total
  • Food and beverage$5,14861%
  • Speaker and faculty fees$3,00036%
  • Education$1732%
  • Travel and lodging$1101%

Companies that paid Dr. Gentry the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Gentry

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mark E. Gentry graduated from Indiana University School of Medicine

Dr. Gentry graduated from Indiana University School of Medicine in 1986.

  1. Medical schoolIndiana University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Mark E. Gentry's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mark E. Gentry

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. Mark E. Gentry's NPI number?

Dr. Mark E. Gentry's NPI number is 1144260191. It was assigned on June 7, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark E. Gentry?

Dr. Mark E. Gentry is an OB-GYN in Plainfield, Indiana. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Dr. Mark E. Gentry practice?

Dr. Gentry practices at 1100 Southfield Dr, Plainfield, IN 46168. Dr. Gentry's primary practice is New Life Associates in Plainfield, Indiana. Dmand AI also links Dr. Gentry to 1 group practice or clinic.

What is Dr. Mark E. Gentry's office phone number?

The practice phone on file for Dr. Gentry is (317) 745-3366.

What is Dr. Mark E. Gentry's medical license number?

Dr. Gentry holds Indiana license 01036942.

Which hospitals is Dr. Mark E. Gentry affiliated with?

Dr. Gentry is affiliated with Hendricks Regional Health Danville Hospital.

What medical group is Dr. Mark E. Gentry part of?

Dr. Gentry is linked to Hendricks Rheumatology.

Does Dr. Mark E. Gentry accept Medicare?

Yes. CMS data shows Dr. Gentry billed Medicare for 169 services in 2024, and Dr. Gentry accepts Medicare assignment.

How many Medicare patients does Dr. Mark E. Gentry see?

CMS counts 66 Medicare patients who saw Dr. Gentry in 2024, with an average age of 70.

What services does Dr. Mark E. Gentry bill to Medicare?

In 2024, Dr. Gentry's most billed Medicare services were office visit, established patient (99213), care management and other visits (99459) and medicare service (G0101).

Show 4 more questionsShow fewer questions

Where did Dr. Mark E. Gentry go to medical school?

Dr. Gentry graduated from Indiana University School of Medicine in 1986.

What drugs does Dr. Mark E. Gentry prescribe most?

In 2024 Medicare Part D data, Dr. Gentry's most prescribed drugs by claims were Estradiol, Premarin and Medroxyprogesterone Acetate.

Has Dr. Mark E. Gentry received payments from drug or device companies?

CMS Open Payments shows $8,430 in general payments to Dr. Gentry from 46 companies from 2016 to 2025. The largest total came from Roche Diagnostics Corporation.

How long has Dr. Mark E. Gentry been practicing?

Dr. Gentry graduated from medical school in 1986, 40 years ago.

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