Doctors and health care providers in Cambridge, MA
5,145 individual NPPES records list a practice address in Cambridge, 4th of 406 Massachusetts cities. The largest group is clinical social worker: 545, 11% of the city's records, against 8% across Massachusetts. Page 81 of 103.
The 8 largest groups in Cambridge
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Cambridge in Massachusetts
- Rank in Massachusetts4th of 406 cities by records
- Share of the state2.3% of Massachusetts's records
- Specialties present25 or more taxonomy codes
- Top three groups22.6% of all records
- Clinical Social Worker rank4th of the 10 Massachusetts cities with the most
Compared with Massachusetts as a whole, Cambridge has 4.1× the state's share of advanced practice midwife records and 0.56× its share of speech-language pathologist records.
Providers in Cambridge, alphabetically
- Erica Rose, R.PHPharmacist1053658419
- Leah RoseMental Health Counselor1295347920
- Vanessa RoseauLicensed Practical Nurse1154975803
- Adam Rosen, PHDPsychologist1780741033
- Wendy Rosen, MSW,PHDClinical Social Worker1043368236
- Katrina Willa Rosenberg, RNRegistered Nurse1932784733
- Lawrence Rosenberg, PH.D.Clinical Psychologist1134104623
- Lia Rosenberg, PAPhysician Assistant1821577727
- Robert Rosenberg, MDPhysical Medicine & Rehabilitation Physician1972615094
- Peter Rosenblatt, MDUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1629048665
- Isadora Rosenbloom, LICSWClinical Social Worker1275144040
- Debra Rosenblum, M.D.Psychiatry Physician1255448841
- Rebecca Rosenblum, PSY.D.Psychologist1255495073
- Cheryl Rosenthal, PSY.D.Clinical Psychologist1336212133
- David Rosenthal, MDHematology & Oncology Physician1417966813
- Janet Rosenwasser, LICSW, CCM, CBISClinical Social Worker1649769308
- Leah Rosenzweig, MEDMental Health Counselor1629707344
- Erin RossAmbulatory Care Registered Nurse1831787969
- Julie Ross, PH.D.Psychologist1033129580
- Leorah Ross, M.D.Nephrology Physician1376525782
- Mathilde Ross, MDNeurology Physician1710044235
- Alexander Rossi, MAMental Health Counselor1538029905
- Rebecca Rossi, MDPediatrics Physician1851957641
- Maria RossiterClinical Social Worker1063187474
- Setareh Rossman, PHDStudent in an Organized Health Care Education/Training Program1720653520
- Suzanne Roth, MSN, APRN-BC, RNCWomen's Health Nurse Practitioner1265699938
- Ronenn Roubenoff, MD, MHSRheumatology Physician1841417433
- Nancie RouleauClinical Neuropsychologist1730804493
- Leila Roumani, DMDDentist1730401662
- Anastasios Roumeliotis, MDInternal Medicine Physician1578192084
- Lauren RountreeRegistered Nurse1972431492
- Elisabeth RousseauRegistered Nurse1558064154
- Julie Rousseau, MS, CGCGenetic Counselor (M.S.)1841274982
- Kathryn Rowan, RN, MSN, CNMAdvanced Practice Midwife1821353194
- Susan Rowlett, LICSWClinical Social Worker1922443589
- Susan Rowley, PH.D.Psychoanalysis Psychologist1730230483
- Ashok Roy, M.D.Internal Medicine Physician1245298637
- Elizabeth Roy, LICSWClinical Social Worker1831262617
- Gabrielle Roy, PSYDClinical Psychologist1235889007
- Elizabeth RoydenSocial Worker1639065253
- Renajd RrapiStudent in an Organized Health Care Education/Training Program1437809506
- Lisa RuffyWomen's Health Nurse Practitioner1144839192
- Gabriela Rufo, NPFamily Nurse Practitioner1528827540
- William Ruhm, LCSWSocial Worker1144857806
- Andrea Ruiz, LSWProfessional Counselor1144856501
- Roxidali RuizRegistered Nurse1114566635
- Daphne Rulf, MDPsychiatry Physician1740377571
- Nancy Rund, NPFamily Nurse Practitioner1679592943
- Laura Ruoff, M.D.Child & Adolescent Psychiatry Physician1679520324
- Jacquelyn RuppClinical Social Worker1780139055
The largest Massachusetts cities
- Boston41,865
- Worcester13,166
- Springfield8,553
- Brockton4,287
- Milford3,459
How to read this directory
Cambridge, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 5,145 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 Cambridge - 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 Cambridge 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 Cambridge is weighted toward Clinical Social Worker (545 clinicians, followed by Student in an Organized Health Care Education/Training Program with 319 and Internal Medicine Physician with 300). 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 Massachusetts's population, Cambridge reports roughly 73.5 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.
Of Massachusetts's most common specialties, Behavior Technician is the most prominent one with no provider currently listing a Cambridge practice address, a coverage gap Cambridge patients typically fill by traveling to a larger nearby hub.
For Cambridge 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 Cambridge, MA?
There are 5,145 registered healthcare providers in Cambridge, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Cambridge?
The most common specialties in Cambridge are Clinical Social Worker, Student in an Organized Health Care Education/Training Program, Internal Medicine Physician, Mental Health Counselor, Social Worker. Clinical Social Worker has the most providers with 545.
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.