Doctors and health care providers in Spencer, IA
346 individual NPPES records list a practice address in Spencer, 23rd of 215 Iowa cities. The largest group is addiction (substance use disorder) counselor: 28, 8% of the city's records, against 2% across Iowa. Page 7 of 7.
The 8 largest groups in Spencer
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Spencer in Iowa
- Rank in Iowa23rd of 215 cities by records
- Share of the state0.7% of Iowa's records
- Specialties present25 or more taxonomy codes
- Top three groups21.1% of all records
- Addiction (Substance Use Disorder) Counselor rank10th of the 10 Iowa cities with the most
Compared with Iowa as a whole, Spencer has 4× the state's share of addiction (substance use disorder) counselor records.
Providers in Spencer, alphabetically
- Susan Terrell, ARNPFamily Nurse Practitioner1447230081
- John Thomas, MPTPhysical Therapist1497947915
- Yelena Thomas, D.O.Family Medicine Physician1437681152
- Courtney Thompson, ARNPNurse Practitioner1316722366
- Troy Thompson, PHARMDPharmacist1386843613
- Jolyn Threlkeld, ARNP, FNP-BCFamily Nurse Practitioner1588257695
- Tom Throckmorton, M.D.Surgery Physician1083671689
- Kristen TriplettMental Health Counselor1063362101
- Amber Utesch, LMSWSocial Worker1881351047
- Holly Valentine, TLMHCMental Health Counselor1467331983
- Kari Van Dam, LMHCMental Health Counselor1750940573
- Carla Van Holsteijn, RD/LDRegistered Dietitian1821376500
- Linda Van-Putten, CADCAddiction (Substance Use Disorder) Counselor1205386869
- Kayla VanderhoffNurse Practitioner1922642552
- Doug Vanhofwegen, DDSGeneral Practice Dentistry1558440172
- Gary Vanhofwegen, DDSGeneral Practice Dentistry1073692661
- Andrew Vanommeren, B.A.Addiction (Substance Use Disorder) Counselor1447796719
- Megan Vanotterloo, MSN, ARNP, FNP-CNurse Practitioner1720401961
- John Vaubel, M.D.Ophthalmology Physician1134117468
- Genelle Vermeer, CADCAddiction (Substance Use Disorder) Counselor1548710106
- Ruth Vetter, OTR/LOccupational Therapist1114189107
- Jonathan WalburgChiropractor1700259215
- Anna Waldner, PMHNPFamily Nurse Practitioner1518383728
- Sandra Walker-Lee, NURSE PRACTITIONERPsychiatric/Mental Health Nurse Practitioner1912338633
- Emily Walton, ARNPFamily Nurse Practitioner1902689763
- Mandi Ward, DPTPhysical Therapist1871871566
- Jordon WeidemanMarriage & Family Therapist1841665882
- Jamie Westerman Billings, ARNPFamily Nurse Practitioner1235229816
- Kelly Westervelt, MSPTPhysical Therapist1912190984
- Daniel WestphalRegistered Nurse1992163869
- Larry Westphal, CRNACertified Registered Nurse Anesthetist1720053424
- Briana Wetrich, PA-CPhysician Assistant1467821116
- Elle-Shante Whalen, M.S., L.M.H.CMental Health Counselor1740635689
- Kimberly Whisenant, NPPediatric Nurse Practitioner1205051208
- Angie Wigen, COTA/LOccupational Therapy Assistant1508331877
- Barbara Wilkerson, ARNPNurse Practitioner1831186469
- Janette Willison, LMSWMental Health Counselor1407179906
- Brian Wilson, D.O.Gynecology Physician1871572404
- Amanda Winterboer, ODOptometrist1154634780
- Travis Witt, M.D.Family Medicine Physician1124344833
- Emma Wolf, DDSDentist1942041793
- Amanda Young, DOFamily Medicine Physician1366553893
- Allyson ZahmMental Health Counselor1508642679
- Chelsea ZaragozaMental Health Counselor1124771324
- Gary Zeutenhorst, MSW, LISWClinical Social Worker1457339483
- Dennis ZylstraChiropractor1134192263
The largest Iowa cities
- Iowa City7,163
- Des Moines5,538
- Cedar Rapids2,949
- West Des Moines2,201
- Davenport2,058
How to read this directory
Spencer, Iowa appears in the CMS National Plan and Provider Enumeration System with 346 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Spencer - 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 Spencer 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 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Spencer is weighted toward Addiction (Substance Use Disorder) Counselor (28 clinicians, followed by Mental Health Counselor with 23 and Pharmacist with 22). 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, Spencer reports roughly 10.8 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.
For Spencer patients, this directory is most useful as a starting shortlist. 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; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Spencer, IA?
There are 346 registered healthcare providers in Spencer, IA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Spencer?
The most common specialties in Spencer are Addiction (Substance Use Disorder) Counselor, Mental Health Counselor, Pharmacist, Social Worker, Physical Therapist. Addiction (Substance Use Disorder) Counselor has the most providers with 28.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
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.