Updated October 2026

Healthcare professionals in Columbia, MD

HCP directory
Columbia, Maryland

Healthcare professionals: 6,543
Physicians (MD, DO): 726
Nurses and NPs: 1,166
Physician assistants: 97
Behavioral health clinicians: 3,362

There are 726 physicians among 6,543 healthcare professionals in Columbia. Johns Hopkins Howard County Medical Center has the most affiliated doctors, 479, and internal medicine is the most common physician specialty.

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There are 726 physicians (MD and DO) among 6,543 healthcare professionals in Columbia, MD

Counting every HCP with an active NPI and a Columbia practice address. Behavioral health clinicians are the largest group, with 3,362, and nurses and nurse practitioners second, with 1,166.

Columbia HCPs by type

Behavioral health clinicians3,36251%
Nurses and nurse practitioners1,16618%
Physicians (MD, DO)72611%
Therapists (PT and OT)3245%
Pharmacists1532%
Dentists and dental staff1512%
Speech therapists and audiologists1372%
Acupuncturists and naturopaths1152%
Physician assistants971%
Non-clinical and support staff701%
Other HCPs2424%

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

Internal medicine is the most common physician specialty in Columbia, with 102 physicians

Pediatrics is second, with 57, and family medicine third, with 53. Each physician is counted once, under the primary specialty on their NPI record.

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

Johns Hopkins Howard County Medical Center has the most affiliated doctors in Columbia, with 479

Physicians are counted at each hospital where they have a current affiliation, wherever they live.

Hospitals in Columbia with the most affiliated doctors
#	Hospital	Health system	Physicians	HCPs
1	Johns Hopkins Howard County Medical CenterColumbia	Johns Hopkins Health System	479	656

Source: Dmand AI Affiliation Data

US Anesthesia Partners has the most doctors of any Columbia medical group, with 224

Maryland Oncology Hematology is second with 63 physicians, and Ascension Saint Agnes OB/GYN Columbia third with 59. Counts are physicians and HCPs with a Maryland address.

Medical groups with the most doctors in Columbia
#	Medical group	Parent organization	Physicians	HCPs
1	US Anesthesia PartnersColumbia	Parent on file	224	533
2	Maryland Oncology HematologyColumbia	-	63	106
3	Ascension Saint Agnes OB/GYN ColumbiaColumbia	Parent on file	59	100
4	University of Maryland Faculty Physicians Immediate CareColumbia	Parent on file	34	56
5	University of Maryland Department of NeurosurgeryColumbia	Parent on file	25	32
6	Gastro Center of MarylandColumbia	Parent on file	23	33
7	Gastro Center of MarylandColumbia	Parent on file	21	78
8	HealthDriveColumbia	Parent on file	16	31
9	University of Maryland DermatologyColumbia	Parent on file	16	22
10	Sheppard Pratt at Howard CountyColumbia	Parent on file	15	134

Top 10 of 88 Columbia medical groupsAll Columbia medical groups

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

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Group practices and clinics are the most common site of care for Columbia healthcare professionals, with 927

Hospitals are second, with 517. A clinician can practice at several kinds of site, so the shares overlap. Pharmacies are left out.

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Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

35% of Columbia physicians finished medical school 30 or more years ago

172 of the 497 Columbia physicians with a graduation year on file. 56 graduated in the last 10 years.

Physicians by years since medical school

Under 10 years ago5611%
10 to 19 years ago14429%
20 to 29 years ago12525%
30 to 39 years ago9619%
40 or more years ago7615%

Source: Dmand AI Professional Profile Data

Every Columbia 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 Columbia HCP directory

Sources for the data on this page
Data on this page	Source
HCPs, types and specialties	NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groups	Dmand AI Affiliation Data
Medical school graduation year	Dmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracy Remove my information

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

FAQ

Frequently asked questions about doctors and healthcare professionals in Columbia

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 Columbia?

726 physicians (MDs and DOs) have an active NPI and a Columbia practice address, among 6,543 Columbia healthcare professionals.

What are the most common physician specialties in Columbia?

By primary specialty: internal medicine (102), pediatrics (57), family medicine (53), psychiatry (50), emergency medicine (38).

Which medical groups have the most Columbia doctors?

US Anesthesia Partners (224 physicians), Maryland Oncology Hematology (63 physicians) and Ascension Saint Agnes OB/GYN Columbia (59 physicians). Counts are physicians with a Maryland address.

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

172 of the 497 with a graduation year on file, or 35%. 56 graduated in the last 10 years.

How can I contact healthcare professionals in Columbia?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for healthcare professionals in Columbia 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.

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