Healthcare professionals in the United States

  • HCP directory
  • United States
Healthcare professionals
7,404,952
Physicians (MD, DO)
1,236,954
Nurses and NPs
952,460
Physician assistants
224,813
Behavioral health clinicians
2,057,321

There are 1,236,954 physicians among 7,404,952 healthcare professionals in the US with an active NPI. California has the most, 998,811, and family medicine is the most common physician specialty. 33% of physicians finished medical school 30 or more years ago.

Find work emails and mobile numbers for 7,404,952 US HCPs

Validated work emails and mobile numbers for US physicians, nurses and every other HCP type, found through healthcare waterfall enrichment, with a free Dmand AI account.

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There are 1,236,954 physicians (MD and DO) among 7,404,952 US healthcare professionals

Dmand AI counts every healthcare professional with an active individual NPI, a name and a US practice address. Behavioral health clinicians are the largest group, with 2,057,321, and nurses and nurse practitioners third, with 952,460.

US HCPs by type

  1. Home and community care workers470,198
  2. Non-clinical and support staff394,084
  3. Pharmacists333,806
  4. Other HCPs648,563

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

California has the most doctors and healthcare professionals, with 998,811

That includes 144,279 physicians. New York is second with 559,998, and Florida third with 473,988. The list covers every state and territory with an HCP on file, largest first.

States with the most healthcare professionals
#StateHealthcare professionalsPhysicians
1California998,811144,279
2New York559,99886,399
3Florida473,98877,097
4Texas434,71885,039
5Ohio339,42447,291
6Michigan285,94540,393
7Pennsylvania260,25856,654
8Illinois242,66851,118
9Massachusetts220,62239,042
10Washington203,11530,100

Top 10 of 56 states and territories

Healthcare professionals in every other state and territory

Source: NPPES NPI Registry (CMS)

Family medicine is the most common physician specialty in the US, with 156,493 physicians

Internal medicine is second, with 153,425, and pediatrics third, with 75,548. Each physician is counted once, under the primary specialty on their NPI record.

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

For health IT teams

Reach US physicians by the EHR their practice uses

Dmand AI has the EHR for 3,247,397 of 7,404,952 US 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.

Group practices and clinics are the most common site of care for US healthcare professionals, with 1,368,058

Hospitals are second, with 1,357,087. A clinician can practice at several kinds of site, so the shares overlap. Pharmacies are left out.

US HCPs by site of care

  1. Group practices and clinics1,368,058
  2. Hospitals1,357,087
  3. Physician offices223,469
  4. Home health agencies134,053
  5. Therapy and rehab centers109,657
  6. Ambulatory surgery centers109,076
  7. FQHCs100,361
  8. Clinical labs61,465
  9. Behavioral health centers59,876
  10. Breast imaging centers54,753

See every site where US 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 7,404,952.

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Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

33% of US physicians finished medical school 30 or more years ago

269,197 of the 810,094 US physicians with a graduation year on file. 122,771 graduated in the last 10 years.

Physicians by years since medical school

  1. Under 10 years ago122,771
  2. 10 to 19 years ago230,912
  3. 20 to 29 years ago187,214
  4. 30 to 39 years ago148,171
  5. 40 or more years ago121,026

Source: Dmand AI Professional Profile Data

Every US 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 US 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 US practice address.

FAQ

Frequently asked questions about doctors and healthcare professionals in the US

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 the US?

1,236,954 physicians (MDs and DOs) have an active NPI and a US practice address, among 7,404,952 US healthcare professionals.

How many nurses are in the US?

952,460 nurses and nurse practitioners have an active individual NPI and a US practice address. Nurses without an individual NPI are not counted.

How many healthcare professionals are in the US?

7,404,952: 2,057,321 behavioral health clinicians, 1,236,954 physicians, 952,460 nurses and nurse practitioners, 546,609 physical and occupational therapists and 2,611,608 others.

Which state has the most doctors?

California, with 998,811 healthcare professionals, 144,279 of them physicians. New York is second with 559,998, and Florida third with 473,988.

What are the most common physician specialties in the US?

By primary specialty: family medicine (156,493), internal medicine (153,425), pediatrics (75,548), emergency medicine (70,641), anesthesiology (60,115).

What does HCP mean?

HCP stands for healthcare professional: anyone who provides care to patients, from physicians, nurses and physician assistants to therapists, pharmacists and behavioral health clinicians. Dmand AI counts each HCP once, by their individual NPI.

Dmand AI

Find the right contacts among US healthcare professionals

Search 7,404,952 US HCPs by specialty, hospital, group and state, with validated work emails and mobile numbers.

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