Dr. Mary F. Zesiewicz, MD

  • Ocala, FL
  • Psychiatrist
NPI1356339220
Medicare services, 2024
85
Medicare patients, 2024
44
Part D claims, 2024
306
Publications
1
Industry payments
$98
Practice address
2303 Se 17th Street Suite 102, Ocala, FL 34471
Practice phone
Call (352) 622-4488
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Ocala Consulting and Prevention

Outpatient Addiction Treatment · Ocala, Florida

See all 1 affiliations

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Dr. Mary F. Zesiewicz is a psychiatrist in Ocala, Florida

Dr. Zesiewicz practices at Ocala Consulting and Prevention in Ocala, Florida.

Dr. Zesiewicz's NPI, 1356339220, was assigned on October 13, 2005. Dr. Zesiewicz graduated from Loyola University Chicago Stritch School of Medicine in 1982. Dr. Zesiewicz holds Florida license ME160794.

NPI and contact details
NPI enumeration date
October 13, 2005
NPI status
Active
Practice phone
(352) 622-4488
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
70
Medical school graduation
1982

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

Dr. Mary F. Zesiewicz practices at Ocala Consulting and Prevention in Ocala, Florida

Dr. Zesiewicz's primary practice is Ocala Consulting and Prevention, at 2303 Se 17th Street Suite 102, Ocala, FL 34471. The practice phone is (352) 622-4488.

  • Ocala Consulting and Prevention
    2303 Se 17th Street Suite 102, Ocala, FL 34471Phone(352) 622-4488

Source: Dmand AI Affiliation Data

Dr. Mary F. Zesiewicz is affiliated with 1 site of care

Dr. Zesiewicz's primary practice is Ocala Consulting and Prevention in Ocala, Florida. Dr. Zesiewicz's employer is on file too: a behavioral health center.

Ocala Consulting and PreventionOutpatient Addiction Treatment · Ocala, FloridaPrimary
Parent health systemName with a free accountEmployer: behavioral health centerName with a free account
See Dr. Zesiewicz's affiliation in Dmand AI

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mary F. Zesiewicz's practice

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

EHR by site
SiteEHR vendor and product
Ocala Consulting and PreventionAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mary F. Zesiewicz is one of 1,975 psychiatrists in Florida

Psychiatry is Dr. Zesiewicz's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Zesiewicz is board certified in child psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Zesiewicz's licenses on file in 4 states: Florida, Colorado, Washington and Illinois.

Specialties and state licenses

  • Psychiatry, FloridaPrimaryLicense ME160794 · 2023 to 2027 · taxonomy 2084P0800X
  • Colorado license1999 to 2027
  • Washington license2016 to 2025
  • Illinois license1981 to 1999

Clinical focus

Dmand AI lists psychoses and substance abuse among the conditions Dr. Zesiewicz treats.

Psychiatrists near Dr. Zesiewicz

Counts of psychiatrists 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. Mary F. Zesiewicz billed Medicare for 85 services in 2024

CMS data shows 85 Medicare services from Dr. Zesiewicz across 3 procedure codes in 2024, for 44 Medicare patients. Medicare paid $4,823 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202485
Medicare patients44
Paid by Medicare$4,823
Procedure codes3

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

  • 2023
  • 2024
Office and hospital visits
2023: 672024: 8527%

Dr. Zesiewicz compared with the Florida median for psychiatrists, 2024

  • Dr. Zesiewicz
  • Florida median
Medicare services
85vs 20458% below
Medicare patients
44vs 7340% below
Part D claims
120vs 24050% below

Medians across 1,952 psychiatrists in Florida with Dmand AI profiles that report each measure.

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

Dr. Mary F. Zesiewicz treated 44 Medicare patients in 2024, average age 55

CMS counts 44 Medicare patients who saw Dr. Zesiewicz in 2024. The largest group is under 65, with 25 patients. 75% of them have anxiety, and 75% have depression. 59% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Zesiewicz's median patient age at 14, with 100% women.

Medicare patients, 202444
Average age55
Average risk score0.95
Also on Medicaid59%

Dr. Zesiewicz's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Zesiewicz's Medicare patients by sex, 2024

  • Women2045%
  • Men2455%

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

  1. Anxiety75%
  2. Depression75%
  3. Mood disorders75%
  4. High blood pressure70%
  5. High cholesterol70%
  6. Alcohol and drug use disorders66%
  7. Bipolar disorder61%
  8. Schizophrenia and other psychoses50%

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

Dr. Zesiewicz's patients across all payers

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

Patient panel by age, all payers

Median age 14

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. Mary F. Zesiewicz wrote 306 Medicare Part D claims in 2024

In 2024, Dr. Zesiewicz wrote 306 Medicare Part D claims for 86 patients. 96% of them were for generic drugs. CMS names the drug for 120 of them, across 5 drugs with 11 or more claims each, at $1,311 in total drug cost. In 2023, CMS named 57 claims across 3 drugs.

Part D claims, 2024306
Drugs named by CMS5
Total drug cost$1,311
Part D patients86

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

  • Generic293 claims96%
  • Brand-name13 claims4%

Dr. Zesiewicz'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.

Drug classes CMS tracks in Dr. Zesiewicz's Part D claims, 2024

  • Antipsychotics, patients 65 and over7%22 of 306 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 572024: 120111%

Drugs named by CMS: 5 in 2024, 3 in 2023.

See all prescribing by Dr. Zesiewicz

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

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Dr. Mary F. Zesiewicz has 1 publication on record

Dmand AI links 1 paper to Dr. Zesiewicz.

Papers1

Recent publications by Dr. Zesiewicz

See all 1 publications and co-authors

See who Dr. Zesiewicz researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zesiewicz works with, so you can find a warm path to the right psychiatrists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mary F. Zesiewicz received $98 in industry payments from 2016 to 2024

CMS Open Payments shows 5 general payments to Dr. Zesiewicz from 4 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Indivior Inc. paid the most, $31.

General payments to Dr. Zesiewicz by program year, 2016 to 2024

Companies that paid Dr. Zesiewicz the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Zesiewicz

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

Dr. Mary F. Zesiewicz graduated from Loyola University Chicago Stritch School of Medicine

Dr. Zesiewicz graduated from Loyola University Chicago Stritch School of Medicine in 1982.

  1. Medical schoolLoyola University Chicago Stritch School of Medicine
  2. Board certified in child psychiatryAmerican Board of Psychiatry and Neurology
  3. Board certified in psychiatryAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Mary F. Zesiewicz accepts plans from 8 insurance carriers

Dr. Zesiewicz is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Cigna
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • United Healthcare
  • Alliant Health Plans

Plan types Dr. Zesiewicz accepts, by number of carriers

  1. Medicare6
  2. PPO6
  3. HMO5
  4. POS3
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mary F. Zesiewicz'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Mary F. Zesiewicz

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. Mary F. Zesiewicz's NPI number?

Dr. Mary F. Zesiewicz's NPI number is 1356339220. It was assigned on October 13, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Mary F. Zesiewicz?

Dr. Mary F. Zesiewicz is a psychiatrist in Ocala, Florida. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Mary F. Zesiewicz practice?

Dr. Zesiewicz practices at 2303 Se 17th Street Suite 102, Ocala, FL 34471. Dr. Zesiewicz's primary practice is Ocala Consulting and Prevention in Ocala, Florida.

What is Dr. Mary F. Zesiewicz's office phone number?

The practice phone on file for Dr. Zesiewicz is (352) 622-4488.

What is Dr. Mary F. Zesiewicz's medical license number?

Dr. Zesiewicz holds Florida license ME160794, one of the licenses on file in 4 states.

Which states has Dr. Mary F. Zesiewicz been licensed in?

Dmand AI has state licenses on file for Dr. Zesiewicz in Florida (2023 to 2027), Colorado (1999 to 2027), Washington (2016 to 2025) and Illinois (1981 to 1999).

Does Dr. Mary F. Zesiewicz accept Medicare?

Yes. CMS data shows Dr. Zesiewicz billed Medicare for 85 services in 2024.

How many Medicare patients does Dr. Mary F. Zesiewicz see?

CMS counts 44 Medicare patients who saw Dr. Zesiewicz in 2024, with an average age of 55.

Is Dr. Mary F. Zesiewicz board certified?

Yes. Dr. Zesiewicz is board certified in child psychiatry by the American Board of Psychiatry and Neurology.

What services does Dr. Mary F. Zesiewicz bill to Medicare?

In 2024, Dr. Zesiewicz's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99238) and hospital inpatient care (99222).

Show 6 more questionsShow fewer questions

Where did Dr. Mary F. Zesiewicz go to medical school?

Dr. Zesiewicz graduated from Loyola University Chicago Stritch School of Medicine in 1982.

What drugs does Dr. Mary F. Zesiewicz prescribe most?

In 2024 Medicare Part D data, Dr. Zesiewicz's most prescribed drugs by claims were Trazodone HCl, Risperidone and Quetiapine Fumarate.

Has Dr. Mary F. Zesiewicz received payments from drug or device companies?

CMS Open Payments shows $98 in general payments to Dr. Zesiewicz from 4 companies from 2016 to 2024. The largest total came from Indivior Inc.

How long has Dr. Mary F. Zesiewicz been practicing?

Dr. Zesiewicz graduated from medical school in 1982, 44 years ago.

Does Dr. Mary F. Zesiewicz do research?

Dmand AI links 1 publication to Dr. Zesiewicz.

What insurance does Dr. Mary F. Zesiewicz accept?

Dr. Zesiewicz is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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