Dr. Karen T. Shirrell, MD
- Medicare services, 2024
- 583
- Medicare patients, 2024
- 120
- Part D claims, 2024
- 4,782
- Hospital affiliations
- 1
- Industry payments
- $254
- Practice address
- 255 Washington St, Newton, MA 02458
- Practice phone
- Call (317) 849-2244
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ageility Physical Therapy Solutions at Clearwater
Newton, Massachusetts
Find Dr. Shirrell'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.
Dr. Karen T. Shirrell is an internist in Newton, Massachusetts
Dr. Shirrell practices at Ageility Physical Therapy Solutions at Clearwater in Newton, Massachusetts.
Dr. Shirrell's NPI, 1922009109, was assigned on August 10, 2005. Dr. Shirrell graduated from Indiana University School of Medicine in 1979. Dr. Shirrell holds Indiana license 01036141.
- NPI
- 1922009109NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244429074
- NPI enumeration date
- August 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (317) 849-2244
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karen T. Shirrell practices at Ageility Physical Therapy Solutions at Clearwater in Newton, Massachusetts
Dr. Shirrell's primary practice is Ageility Physical Therapy Solutions at Clearwater, at 255 Washington St, Newton, MA 02458 in Middlesex County. The practice phone is (317) 849-2244.
- Ageility Physical Therapy Solutions at Clearwater255 Washington St, Newton, MA 02458 · Middlesex CountyPhone(317) 849-2244
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Karen T. Shirrell is affiliated with 6 sites of care
Dr. Shirrell's primary practice is Ageility Physical Therapy Solutions at Clearwater in Newton, Massachusetts. Dr. Shirrell is also affiliated with Ascension St. Vincent Carmel. Dmand AI also links Dr. Shirrell to 3 more home health agencies and 1 hospice, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Karen T. Shirrell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shirrell practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ageility Physical Therapy Solutions at Clearwater | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen T. Shirrell is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Shirrell's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Shirrell is licensed in Indiana.
Specialties and state licenses
- Internal medicine, IndianaPrimary
Internists near Dr. Shirrell
Counts of internists 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
Dr. Karen T. Shirrell billed Medicare for 583 services in 2024
CMS data shows 583 Medicare services from Dr. Shirrell across 3 procedure codes in 2024, for 120 Medicare patients. Medicare paid $45,082 for them. Every service was in an office.
Dr. Shirrell's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4742024: 58323%
Dr. Shirrell compared with the Massachusetts median for internists, 2024
- Dr. Shirrell
- Massachusetts median
- Medicare services
- 583vs 43135% above
- Medicare patients
- 120vs 19438% below
- Part D claims
- 4,257vs 40210.6 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Shirrell's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shirrell and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen T. Shirrell treated 120 Medicare patients in 2024, average age 86
CMS counts 120 Medicare patients who saw Dr. Shirrell in 2024. The largest group is 85 and over, with 80 patients. 75% of them have high blood pressure, and 69% have high cholesterol. Their average risk score is 1.71, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Shirrell's median patient age at 88, with 71% women.
Dr. Shirrell's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Shirrell's Medicare patients by sex, 2024
- Women7865%
- Men4235%
Chronic conditions among Dr. Shirrell's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Alzheimer's and dementia57%
- Depression50%
- Arthritis46%
- Mood disorders42%
- Anxiety38%
- Atrial fibrillation32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shirrell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 88
Patient panel by sex, all payers
- Women71%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karen T. Shirrell wrote 4,782 Medicare Part D claims in 2024
In 2024, Dr. Shirrell wrote 4,782 Medicare Part D claims for 174 patients. 90% of them were for generic drugs. CMS names the drug for 4,257 of them, across 99 drugs with 11 or more claims each, at $233,783 in total drug cost. In 2023, CMS named 3,625 claims across 94 drugs.
Dr. Shirrell's Part D claims by kind of drug, 2024
- Generic4,327 claims90%
- Brand-name439 claims9%
- Other16 claims0%
Dr. Shirrell's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Shirrell's Part D claims, 2024
- Opioids2%72 of 4,782 claims
- Antibiotics4%171 of 4,782 claims
- Antipsychotics, patients 65 and over4%179 of 4,782 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,6252024: 4,25717%
Drugs named by CMS: 99 in 2024, 94 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Karen T. Shirrell takes part in Medicare
Dr. Shirrell 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)
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Dr. Karen T. Shirrell received $254 in industry payments from 2016 to 2017
CMS Open Payments shows 12 general payments to Dr. Shirrell from 2 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $243.
General payments to Dr. Shirrell by program year, 2016 to 2017
Companies that paid Dr. Shirrell the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Karen T. Shirrell graduated from Indiana University School of Medicine
Dr. Shirrell graduated from Indiana University School of Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Karen T. Shirrell'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 DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| Industry payments | Open Payments (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 Dr. Karen T. Shirrell
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Karen T. Shirrell's NPI number?
Dr. Karen T. Shirrell's NPI number is 1922009109. It was assigned on August 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen T. Shirrell?
Dr. Karen T. Shirrell is an internist in Newton, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Karen T. Shirrell practice?
Dr. Shirrell practices at 255 Washington St, Newton, MA 02458. Dr. Shirrell's primary practice is Ageility Physical Therapy Solutions at Clearwater in Newton, Massachusetts. Dmand AI also links Dr. Shirrell to 3 home health agencies and 1 hospice.
What is Dr. Karen T. Shirrell's office phone number?
The practice phone on file for Dr. Shirrell is (317) 849-2244.
What is Dr. Karen T. Shirrell's medical license number?
Dr. Shirrell holds Indiana license 01036141.
Which hospitals is Dr. Karen T. Shirrell affiliated with?
Dr. Shirrell is affiliated with Ascension St. Vincent Carmel.
Does Dr. Karen T. Shirrell accept Medicare?
Yes. CMS data shows Dr. Shirrell billed Medicare for 583 services in 2024, and Dr. Shirrell accepts Medicare assignment.
How many Medicare patients does Dr. Karen T. Shirrell see?
CMS counts 120 Medicare patients who saw Dr. Shirrell in 2024, with an average age of 86.
What services does Dr. Karen T. Shirrell bill to Medicare?
In 2024, Dr. Shirrell's most billed Medicare services were home visit (99349), home visit (99348) and home visit (99344).
Where did Dr. Karen T. Shirrell go to medical school?
Dr. Shirrell graduated from Indiana University School of Medicine in 1979.
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What drugs does Dr. Karen T. Shirrell prescribe most?
In 2024 Medicare Part D data, Dr. Shirrell's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Karen T. Shirrell received payments from drug or device companies?
CMS Open Payments shows $254 in general payments to Dr. Shirrell from 2 companies from 2016 to 2017. The largest total came from Allergan Inc.
How long has Dr. Karen T. Shirrell been practicing?
Dr. Shirrell graduated from medical school in 1979, 47 years ago.
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