Mark A. Preston, MD
Psychiatry Physician · Creston, IA
Mark A. Preston, MD is a psychiatry physician with a practice address in Creston, Iowa, and NPI 1811987043, issued on Oct 27, 2005. Check the license (Iowa 25526, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark A. Preston
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 25526 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 W Townline St, Creston, IA 50801
- Phone
- (641) 782-2131
- Enumerated
- Oct 27, 2005
- Record last updated
- Nov 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (641) 782-6425
- Medicaid IDs
- 0241042 IA
1811987043 IA - Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 398 in Iowa → Look up another NPI →
Also registered at 1700 W Townline St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Anderson, CRNACertified Registered Nurse Anesthetist1265641310
- Stephanie Anderson, CRNACertified Registered Nurse Anesthetist1629275532
- Brooke Becker, ARNP, CPNP-PCPediatric Nurse Practitioner1427607753
- Leeann Berg, ARNPPsychiatric/Mental Health Nurse Practitioner1710548581
- Madison Bergren, FNP-CNurse Practitioner1356810949
- Megan Birchard, ATCAthletic Trainer1780164996
Verify Mark A. Preston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 25526Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.2 times the Medicare Part D claims of the average psychiatry physician in 2024
8,152 Medicare Part D claims for 294 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Duloxetine Hcl610 claims
- Quetiapine Fumarate529 claims
- Trazodone Hcl523 claims
- Alprazolam510 claims
- Escitalopram Oxalate458 claims
- Bupropion Xl387 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.
Mark A. Preston among 398 psychiatry physician records in Iowa
Mark A. Preston, MD is one of 398 psychiatry physician records with a practice address in Iowa. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileNo · 47% of these records are
- Record last updated2016 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Iowa
There are 398 psychiatry physician records in Iowa.
All 398 in Iowa → Every provider in Creston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Mohammad Afridi, MDWaterloo, IA 507031417093071
- Raja Akbar, MDWaterloo, IA 507031073547105
- Sadia Chaudhary, MDWaterloo, IA 507031861946543
- Jennifer Hoelscher, ARNPWaterloo, IA 507031770146524
- Darko Zdilar, MDWaterloo, IA 507031871527903
- Deborah Garrelts-Daoud, M.D.Waterloo, IA 507021215025309
- Sunita Kantamneni, MDWaterloo, IA 507021851329296
- Bobbita Nag, M.D.Waterloo, IA 507021013115369
Common questions
What is Mark A. Preston, MD's NPI number?
Mark A. Preston, MD's National Provider Identifier (NPI) is 1811987043, issued on Oct 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark A. Preston, MD located?
The NPPES record lists a practice address at 1700 W Townline St, Creston, IA, 50801. Phone: (641) 782-2131. Providers update this record themselves, so call before visiting.
How can I verify Mark A. Preston, MD's license?
NPPES lists Iowa license number 25526, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark A. Preston, MD prescribe under Medicare Part D?
In 2024, Mark A. Preston, MD had 8,152 Medicare Part D claims for 294 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.