John Fredrick McCarthy Jr., DC
- Medicare patients, 2026
- 41
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2017
- Practice address
- 49 Holland St, Somerville, MA 02144
- Practice phone
- Call (617) 625-8707
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Davis Square Chiropractic
Somerville, Massachusetts
Find John McCarthy's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
John Fredrick McCarthy Jr. is a chiropractor in Somerville, Massachusetts
John McCarthy practices at Davis Square Chiropractic in Somerville, Massachusetts.
John McCarthy's NPI, 1629596549, was assigned on August 30, 2017. John McCarthy graduated from Life Chiropractic College - West in 2014. John McCarthy holds Massachusetts license 3517.
- NPI
- 1629596549NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163769266
- NPI enumeration date
- August 30, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 625-8707
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
John Fredrick McCarthy Jr. practices at Davis Square Chiropractic in Somerville, Massachusetts
John McCarthy's primary practice is Davis Square Chiropractic, at 49 Holland St, Somerville, MA 02144 in Middlesex County. The practice phone is (617) 625-8707.
- Davis Square Chiropractic49 Holland St, Somerville, MA 02144 · Middlesex CountyPhone(617) 625-8707
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John Fredrick McCarthy Jr. is affiliated with 2 sites of care and 1 medical group
John McCarthy's primary practice is Davis Square Chiropractic in Somerville, Massachusetts. Dmand AI also links John McCarthy to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at John Fredrick McCarthy Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where John McCarthy practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Davis Square Chiropractic | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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John Fredrick McCarthy Jr. is one of 854 chiropractors in Massachusetts
Chiropractor is John McCarthy's primary specialty in the NPI Registry, under taxonomy code 111N00000X. John McCarthy is licensed in Massachusetts.
Specialties and state licenses
- Chiropractor, MassachusettsPrimary
Chiropractors near John McCarthy
Counts of chiropractors with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
John Fredrick McCarthy Jr. treated 41 Medicare patients in 2026, average age 72
CMS counts 41 Medicare patients who saw John McCarthy in 2026. The largest group is 65 to 74, with 22 patients. 59% of them have high cholesterol, and 51% have high blood pressure. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts John McCarthy's median patient age at 42, with 64% women.
John McCarthy's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
John McCarthy's Medicare patients by sex, 2026
- Women2561%
- Men1639%
Chronic conditions among John McCarthy's Medicare patients, 2026
- High cholesterol59%
- High blood pressure51%
- Arthritis49%
- Anxiety32%
Share of Medicare patients with each condition. A patient can have several.
John McCarthy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
How John Fredrick McCarthy Jr. takes part in Medicare
John McCarthy accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
John Fredrick McCarthy Jr. graduated from Life Chiropractic College - West
John McCarthy graduated from Life Chiropractic College - West in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John Fredrick McCarthy Jr.'s profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about John Fredrick McCarthy Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Fredrick McCarthy Jr.'s NPI number?
John Fredrick McCarthy Jr.'s NPI number is 1629596549. It was assigned on August 30, 2017, and it is active in the NPI Registry.
What does John Fredrick McCarthy Jr. specialize in?
John Fredrick McCarthy Jr. is a chiropractor in Somerville, Massachusetts. The primary specialty in the NPI Registry is Chiropractor (taxonomy code 111N00000X).
Where does John Fredrick McCarthy Jr. practice?
John McCarthy practices at 49 Holland St, Somerville, MA 02144. John McCarthy's primary practice is Davis Square Chiropractic in Somerville, Massachusetts. Dmand AI also links John McCarthy to 1 group practice or clinic and 1 medical group, and a free account names each one.
What is John Fredrick McCarthy Jr.'s office phone number?
The practice phone on file for John McCarthy is (617) 625-8707. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is John Fredrick McCarthy Jr.'s email address?
Dmand AI checks professional and personal email addresses for John McCarthy through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is John Fredrick McCarthy Jr.'s medical license number?
John McCarthy holds Massachusetts license 3517.
What medical group is John Fredrick McCarthy Jr. part of?
Dmand AI links John McCarthy to 1 medical group. A free account names the group, with the clinicians and leaders there.
Who does John Fredrick McCarthy Jr. practice with?
Dmand AI links 7 HCPs to John McCarthy's primary medical group. A free account lists them, with verified contacts.
Does John Fredrick McCarthy Jr. accept Medicare?
Yes. CMS lists John McCarthy as accepting Medicare assignment.
How many Medicare patients does John Fredrick McCarthy Jr. see?
CMS counts 41 Medicare patients who saw John McCarthy in 2026, with an average age of 72.
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Where did John Fredrick McCarthy Jr. go to medical school?
John McCarthy graduated from Life Chiropractic College - West in 2014.
How long has John Fredrick McCarthy Jr. been practicing?
John McCarthy graduated from medical school in 2014, 12 years ago.
What EHR does John Fredrick McCarthy Jr.'s practice use?
Dmand AI tracks the EHR system at Davis Square Chiropractic and at 1 more site and 1 medical group. The vendor and product are available with a free Dmand AI account.
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