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Healthcare professionals in Waterloo, IA

  • HCP directory
  • Waterloo, Iowa
Healthcare professionals
1,701
Physicians (MD, DO)
447
Nurses and NPs
336
Physician assistants
52
Behavioral health clinicians
354

There are 447 physicians among 1,701 healthcare professionals in Waterloo. UnityPoint Health - Allen Hospital has the most affiliated doctors, 367, and family medicine is the most common physician specialty.

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There are 447 physicians (MD and DO) among 1,701 healthcare professionals in Waterloo, IA

Counting every HCP with an active NPI and a Waterloo practice address. Physicians (MD, DO) are the largest group, with 447, and behavioral health clinicians second, with 354.

Waterloo HCPs by type

  1. Physicians (MD, DO)447
  2. Behavioral health clinicians354
  3. Nurses and nurse practitioners336
  4. Pharmacists130
  5. Therapists (PT and OT)88
  6. Dentists and dental staff65
  7. Athletic trainers61
  8. Physician assistants52
  9. Chiropractors35
  10. Speech therapists and audiologists31
  11. Other HCPs102

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

Family medicine is the most common physician specialty in Waterloo, with 112 physicians

Internal medicine is second, with 46, and anesthesiology third, with 39. Each physician is counted once, under the primary specialty on their NPI record.

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

UnityPoint Health - Allen Hospital has the most affiliated doctors in Waterloo, with 367

MercyOne Waterloo Medical Center is second with 323 physicians. Physicians are counted at each hospital where they have a current affiliation, wherever they live.

Hospitals in Waterloo with the most affiliated doctors
#HospitalHealth systemPhysiciansHCPs
1UnityPoint Health - Allen HospitalWaterlooUnityPoint Health367694
2MercyOne Waterloo Medical CenterWaterlooTrinity Health323545

Source: Dmand AI Affiliation Data

MercyOne Waterloo OB/GYN has the most doctors of any Waterloo medical group, with 156

UnityPoint Health - Allen Hospital is second with 126 physicians, and Cedar Valley Medical Specialists third with 35. Counts are physicians and HCPs with an Iowa address.

Medical groups with the most doctors in Waterloo
#Medical groupParent organizationPhysiciansHCPs
1MercyOne Waterloo OB/GYNWaterlooParent on file156271
2UnityPoint Health - Allen HospitalWaterlooParent on file126254
3Cedar Valley Medical SpecialistsWaterloo-3599
4Peoples Community Health ClinicWaterlooParent on file1242
5MercyOne Oelwein Medical CenterWaterlooParent on file911
6Cedar Valley Digestive Health CenterWaterloo-830
7Fiat Family MedicineWaterloo-33
8Clinical Pathology AssociatesWaterlooParent on file22
9Dermatology Associates PCWaterloo-15
10Premier DermatologyWaterloo-13

Top 10 of 29 Waterloo medical groupsAll Waterloo medical groups

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

For health IT teams

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Dmand AI has the EHR for 1,206 of 1,701 Waterloo HCPs, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.

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687 Waterloo healthcare professionals practice at a hospital, the most common site of care

Group practices and clinics are second, with 504. A clinician can practice at several kinds of site, so the shares overlap. Pharmacies are left out.

Waterloo HCPs by site of care

  1. Hospitals687
  2. Group practices and clinics504
  3. Behavioral health centers73
  4. Physician offices66
  5. Hospices55
  6. Ambulatory surgery centers48
  7. FQHCs45
  8. Skilled nursing facilities43
  9. Home health agencies40
  10. Therapy and rehab centers8

See every site where Waterloo HCPs practice

Each public profile names one place an HCP practices. A free account shows every current hospital, clinic and medical group, the employer and validated contacts for all 1,701.

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Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

36% of Waterloo physicians finished medical school 30 or more years ago

106 of the 293 Waterloo physicians with a graduation year on file. 42 graduated in the last 10 years.

Physicians by years since medical school

  1. Under 10 years ago42
  2. 10 to 19 years ago88
  3. 20 to 29 years ago57
  4. 30 to 39 years ago64
  5. 40 or more years ago42

Source: Dmand AI Professional Profile Data

Every Waterloo HCP profile shows where they practice now, their Medicare activity and their NPI details

  • Primary practiceThe main place they practice, with its type and cityOn every profile
  • Every site of careEach hospital, clinic and group where they practice nowWith a free account
  • EmployerThe organization they work for, when one is on fileWith a free account
  • Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
  • Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
  • Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
  • Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
  • Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
  • NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
  • Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
  • EHR in useThe EHR at each site where they practiceWith a free account
  • Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account

Free account: 30 days free, self-serve, no credit card.

Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data

Sources for the Waterloo HCP directory

Sources for the data on this page
Data on this pageSource
HCPs, types and specialtiesNPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groupsDmand AI Affiliation Data
Medical school graduation yearDmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracyRemove my information

The directory counts HCPs with an active individual NPI, a name and a Waterloo practice address.

FAQ

Frequently asked questions about doctors and healthcare professionals in Waterloo

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many doctors are in Waterloo?

447 physicians (MDs and DOs) have an active NPI and a Waterloo practice address, among 1,701 Waterloo healthcare professionals.

What are the most common physician specialties in Waterloo?

By primary specialty: family medicine (112), internal medicine (46), anesthesiology (39), emergency medicine (22), obstetrics and gynecology (19).

Which Waterloo hospitals have the most doctors?

UnityPoint Health - Allen Hospital, with 367 affiliated physicians, followed by MercyOne Waterloo Medical Center with 323.

Which medical groups have the most Waterloo doctors?

MercyOne Waterloo OB/GYN (156 physicians), UnityPoint Health - Allen Hospital (126 physicians) and Cedar Valley Medical Specialists (35 physicians). Counts are physicians with an Iowa address.

How many Waterloo physicians finished medical school 30 or more years ago?

106 of the 293 with a graduation year on file, or 36%. 42 graduated in the last 10 years.

How can I contact healthcare professionals in Waterloo?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for healthcare professionals in Waterloo through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.

Dmand AI

Find the right contacts among Waterloo healthcare professionals

Search 1,701 Waterloo HCPs by specialty, hospital, group and city, with validated work emails and mobile numbers.

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