2026 data CMS NPPES NUCC Taxonomy

Doctors in Marshalltown, IA

Compiled from official public sources by the PlainDoctor editorial team.

Active healthcare providers in Marshalltown sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

430
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Physical Therapist
Top specialty
36 providers
Iowa
State
IA

430 healthcare providers across 20 specialties

Marshalltown, Iowa appears in the CMS National Plan and Provider Enumeration System with 430 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Marshalltown - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Marshalltown practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Marshalltown is weighted toward Physical Therapist (36 clinicians, followed by Mental Health Counselor with 31 and Pharmacist with 24). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Iowa's population, Marshalltown reports roughly 13.4 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Within Iowa, Marshalltown ranks #21 of 212 cities tracked by provider count, accounting for 0.9% of the state's registered providers. Of Iowa's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Marshalltown practice address, a coverage gap Marshalltown patients typically fill by traveling to a larger nearby hub.

For Marshalltown patients, this directory is most useful as a starting shortlist, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

430
Providers
20
Specialties
#21
of 212 IA cities
0.9%
of IA providers
13.4
Per 100K (state)

Which specialties are most common in Marshalltown

Physical Therapist 36
Mental Health Counselor 31
Pharmacist 24
Addiction (Substance Use Disorder) Counselor 22
Family Medicine Physician 19
Registered Dietitian 19
Nurse Practitioner 18
General Practice Dentistry 16
Physician Assistant 15
Occupational Therapist 13
Social Worker 13
Optometrist 12
Speech-Language Pathologist 11
Clinical Social Worker 11
Family Nurse Practitioner 10
Chiropractor 9
Athletic Trainer 8
Internal Medicine Physician 7
Registered Nurse 7
Counselor 7

Healthcare Providers (Page 6)

Name
Katie Mennenga
Hearing Instrument Specialist
Hannah Merfeld
Speech-Language Pathologist
Kerri Metzger, M.D.
Pediatrics Physician
Roy Metzger, ARNP
Psychiatry Physician
Kristin Meyer, PHARMD, CGP
Geriatric Pharmacist
Maemie Miller, PA-C
Physician Assistant
Rebecca Miller, PA-C
Medical Physician Assistant
Allison Mills, DPT, ATC, LAT
Physical Therapist
Mark Minear, PHD
Psychologist
Michael Miriovsky, MD
Family Medicine Physician
Kacie Monroe, O.D.
Vision Therapy Optometrist
Heather Moore, DPT
Physical Therapist
Robert Moore, LICENSED ELIGIBLE ME
Counselor
Tiara Mosley, LMSW
Social Worker
Candace Muller, RN
Registered Nurse
Monica Murillo, TCADC
Addiction (Substance Use Disorder) Counselor
Abigail Narayan
Pharmacist
George Neff, OD
Optometrist
Robert Negrete, OD
Optometrist
Ashley Nehman, PHARM D
Pharmacist
Erik Niggemeyer, PT
Physical Therapist
Allan Noe, MD
Anesthesiology Physician
Ranae Norland, DPT
Physical Therapist
Katie O'Bannon
Mental Health Counselor
Richard O'Bannon
Mental Health Counselor
Thomas Ogston
Mental Health Counselor
Maria Olberding, M.D.
Family Medicine Physician
Morgan Oliver, LMSW
Social Worker
Andrea Olson, RN
Registered Nurse
Tricia Ortega, LICENSED ELIGIBLE ME
Mental Health Counselor
Carrie Ortiz, RN
Psychiatric/Mental Health Registered Nurse
Rebecca Pansegrau, LMSW
Addiction (Substance Use Disorder) Counselor
Jacob Parks
Addiction (Substance Use Disorder) Counselor
Jacob Parsons, D.D.S.
Dentist
Jill Paulsen, CRNA
Certified Registered Nurse Anesthetist
Angela Paxson
Health Educator
Jenissa Peart, TLHMC
Mental Health Counselor
Gary Peasley, M.D.
Urology Physician
Sarah Perry
Addiction (Substance Use Disorder) Counselor
Nancy Peterson, LMHC
Addiction (Substance Use Disorder) Counselor
Robert Peterson, D.D.S.
General Practice Dentistry
Larry Phipps
Chiropractor
Mung Piang
Pharmacist
Linda Pierson, R.D.
Registered Dietitian
Kristin Pikna, LMHC
Mental Health Counselor
Joseph Pollpeter, M.D.
Family Medicine Physician
Maggie Potter, PA-S
Physician Assistant
Jasia Powell
Clinical Social Worker
Lindsey Powell, AUD
Audiologist
Bradley Price, D.D.S.
General Practice Dentistry

Nearby Cities in Iowa

Other Iowa cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Marshalltown, IA?
There are 430 registered healthcare providers in Marshalltown, IA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Marshalltown?
The most common specialties in Marshalltown are Physical Therapist, Mental Health Counselor, Pharmacist, Addiction (Substance Use Disorder) Counselor, Family Medicine Physician. Physical Therapist has the most providers with 36.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the PlainDoctor editorial team.