Timothy A. Karthas

  • Auburndale, MA
  • Podiatric surgeon
NPI1790102291PAC ID7810268638
Medicare patients, 2024
441
Part D claims, 2024
165
Affiliated sites
1
Medical group
1
State license
1
Practice address
275 Grove St, Auburndale, MA 02466
Practice phone
Call (617) 421-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Atrius Health, Inc.

Auburndale, Massachusetts

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Timothy A. Karthas is a podiatric surgeon in Auburndale, Massachusetts

Timothy Karthas practices at Atrius Health, Inc. in Auburndale, Massachusetts.

Timothy Karthas' NPI, 1790102291, was assigned on March 21, 2014. Timothy Karthas holds Massachusetts license 2455.

NPI and contact details
Medicare PAC ID
7810268638
NPI enumeration date
March 21, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(617) 421-1000
Professional email
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Personal email
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Mobile number
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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)

Timothy A. Karthas practices at Atrius Health, Inc. in Auburndale, Massachusetts

Timothy Karthas' primary practice is Atrius Health, Inc., at 275 Grove St, Auburndale, MA 02466 in Middlesex County. The practice phone is (617) 421-1000.

  • Atrius Health, Inc.
    275 Grove St, Auburndale, MA 02466 · Middlesex CountyPhone(617) 421-1000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Timothy A. Karthas is affiliated with 2 sites of care and 1 medical group

Timothy Karthas' primary practice is Atrius Health, Inc. in Auburndale, Massachusetts. The medical group on file is Atrius Health. Dmand AI also links Timothy Karthas to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Timothy Karthas

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Timothy A. Karthas' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Timothy Karthas practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Atrius Health, Inc.Available with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Timothy A. Karthas is one of 105 podiatric surgeons in Massachusetts

Foot and ankle surgery is Timothy Karthas' primary specialty in the NPI Registry, under taxonomy code 213ES0103X. Timothy Karthas is licensed in Massachusetts.

Specialties and state licenses

  • Foot and ankle surgery podiatrist, MassachusettsPrimaryLicense 2455 · taxonomy 213ES0103X

Podiatric surgeons near Timothy Karthas

Counts of podiatric surgeons with a Dmand AI profile, by place and practice. Each opens the list.

105podiatric surgeons in Massachusetts
3podiatric surgeons in Auburndale

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

Timothy A. Karthas treated 441 Medicare patients in 2024, average age 73

CMS counts 441 Medicare patients who saw Timothy Karthas in 2024. The largest group is 65 to 74, with 236 patients. 75% of them have high cholesterol, and 65% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.18, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Timothy Karthas' median patient age at 66, with 58% women.

Medicare patients, 2024441
Average age73
Average risk score1.18
Also on Medicaid13%

Timothy Karthas' Medicare patients by age, 2024

Timothy Karthas' Medicare patients by sex, 2024

  • Women25558%
  • Men18642%

Chronic conditions among Timothy Karthas' Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure65%
  3. Arthritis51%
  4. Diabetes27%
  5. Anxiety26%
  6. Mood disorders25%
  7. Ischemic heart disease23%
  8. Chronic kidney disease22%

Share of Medicare patients with each condition. A patient can have several.

Timothy Karthas' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women58%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Timothy A. Karthas wrote 165 Medicare Part D claims in 2024

In 2024, Timothy Karthas wrote 165 Medicare Part D claims for 95 patients. 100% of them were for generic drugs.

Part D claims, 2024165
Part D patients95

Drug classes CMS tracks in Timothy Karthas' Part D claims, 2024

  • Opioids8%14 of 165 claims
  • Antibiotics7%12 of 165 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Timothy A. Karthas ranks in the 69th percentile for removal of nail tissue in Medicare

Timothy Karthas accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 98 procedures of removal of nail tissue by Timothy Karthas, more than 69% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Timothy Karthas ranks in Medicare procedure volume

Removal of nail tissue
69th percentile98 procedures
Removal of skin lesions
66th percentile23 procedures
Removal or shaving of skin growth
68th percentile15 procedures
Removal of tissue
62nd percentile11 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Sources for Timothy A. Karthas's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Timothy A. Karthas

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

What is Timothy A. Karthas' NPI number?

Timothy A. Karthas' NPI number is 1790102291. It was assigned on March 21, 2014, and it is active in the NPI Registry.

What does Timothy A. Karthas specialize in?

Timothy A. Karthas is a podiatric surgeon in Auburndale, Massachusetts. The primary specialty in the NPI Registry is Foot & Ankle Surgery Podiatrist (taxonomy code 213ES0103X).

Where does Timothy A. Karthas practice?

Timothy Karthas practices at 275 Grove St, Auburndale, MA 02466. Timothy Karthas' primary practice is Atrius Health, Inc. in Auburndale, Massachusetts. Dmand AI also links Timothy Karthas to 1 group practice or clinic.

What is Timothy A. Karthas' office phone number?

The practice phone on file for Timothy Karthas is (617) 421-1000.

What is Timothy A. Karthas' medical license number?

Timothy Karthas holds Massachusetts license 2455.

What medical group is Timothy A. Karthas part of?

Timothy Karthas is linked to Atrius Health.

Does Timothy A. Karthas accept Medicare?

Yes. CMS lists Timothy Karthas as accepting Medicare assignment.

How many Medicare patients does Timothy A. Karthas see?

CMS counts 441 Medicare patients who saw Timothy Karthas in 2024, with an average age of 73.

How long has Timothy A. Karthas been practicing?

Timothy Karthas graduated from medical school in 2014, 12 years ago.

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