Catherine Loomis, PA-C
- Medicare services, 2024
- 483
- Medicare patients, 2024
- 284
- Part D claims, 2024
- 330
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1030 Main St, Waltham, MA 02451
- Practice phone
- Call (781) 270-4700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
American Family Care Waltham
Urgent Care Center · Waltham, Massachusetts
Find Catherine Loomis' 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.
Catherine Loomis is a physician assistant in Waltham, Massachusetts
Catherine Loomis practices at American Family Care Waltham in Waltham, Massachusetts.
Catherine Loomis' NPI, 1548870249, was assigned on August 6, 2020. Catherine Loomis graduated from Tufts University School of Medicine in 2020. Catherine Loomis holds California license PA57943.
- NPI
- 1548870249NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597128348
- NPI enumeration date
- August 6, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 270-4700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Catherine Loomis practices at American Family Care Waltham in Waltham, Massachusetts
Catherine Loomis' primary practice is American Family Care Waltham, at 1030 Main St, Waltham, MA 02451. The practice phone is (781) 270-4700.
- American Family Care Waltham1030 Main St, Waltham, MA 02451Phone(781) 270-4700
Source: Dmand AI Affiliation Data
Catherine Loomis is affiliated with 1 site of care and 1 medical group
Catherine Loomis' primary practice is American Family Care Waltham in Waltham, Massachusetts. The medical group on file is AFC Doctors Express Urgent Care Waltham. Catherine Loomis' employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Catherine Loomis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Catherine Loomis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| American Family Care Waltham | Available with a free account |
Source: Dmand AI Technology Install Data
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Catherine Loomis is one of 3,922 physician assistants in Massachusetts
Physician assistant is Catherine Loomis' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Catherine Loomis is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic nasal allergies, contact dermatitis, ear eustachian tube disorders, enlarged prostate, muscle pain, fibromyalgia, and limb pain, rash, swimmer's ear and UTI among the conditions Catherine Loomis treats.
Physician assistants near Catherine Loomis
Counts of physician assistants 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
Catherine Loomis billed Medicare for 483 services in 2024
CMS data shows 483 Medicare services from Catherine Loomis across 8 procedure codes in 2024, for 284 Medicare patients. Medicare paid $33,746 for them. Every service was in an office.
Catherine Loomis' Medicare services by type, 2024
- Office and hospital visits266
- Lab and pathology182
- Imaging35
Catherine Loomis compared with the Massachusetts median for physician assistants, 2024
- Catherine Loomis
- Massachusetts median
- Medicare services
- 483vs 43910% above
- Medicare patients
- 284vs 1212.3 times
- Part D claims
- 211vs 33337% below
Medians across 2,399 physician assistants in Massachusetts with Dmand AI profiles that report each measure.
Catherine Loomis' 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Catherine Loomis treated 284 Medicare patients in 2024, average age 73
CMS counts 284 Medicare patients who saw Catherine Loomis in 2024. The largest group is 65 to 74, with 126 patients. 69% of them have high cholesterol, and 64% have high blood pressure. 21% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Catherine Loomis' median patient age at 36, with 59% women.
Catherine Loomis' Medicare patients by age, 2024
Catherine Loomis' Medicare patients by sex, 2024
- Women18565%
- Men9935%
Chronic conditions among Catherine Loomis' Medicare patients, 2024
- High cholesterol69%
- High blood pressure64%
- Arthritis41%
- Anxiety36%
- Mood disorders28%
- Depression25%
- Ischemic heart disease23%
- Chronic kidney disease21%
Share of Medicare patients with each condition. A patient can have several.
Catherine Loomis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Catherine Loomis wrote 330 Medicare Part D claims in 2024
In 2024, Catherine Loomis wrote 330 Medicare Part D claims for 242 patients. 87% of them were for generic drugs. CMS names the drug for 211 of them, across 9 drugs with 11 or more claims each, at $2,245 in total drug cost.
Catherine Loomis' Part D claims by kind of drug, 2024
- Generic287 claims87%
- Brand-name and other43 claims13%
Catherine Loomis' 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 Catherine Loomis' Part D claims, 2024
- Antibiotics52%170 of 330 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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 Catherine Loomis takes part in Medicare
Catherine Loomis 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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Catherine Loomis graduated from Tufts University School of Medicine
Catherine Loomis graduated from Tufts University School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Catherine Loomis'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| 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 Catherine Loomis
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What is Catherine Loomis' NPI number?
Catherine Loomis' NPI number is 1548870249. It was assigned on August 6, 2020, and it is active in the NPI Registry.
What does Catherine Loomis specialize in?
Catherine Loomis is a physician assistant in Waltham, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Catherine Loomis practice?
Catherine Loomis practices at 1030 Main St, Waltham, MA 02451. Catherine Loomis' primary practice is American Family Care Waltham in Waltham, Massachusetts.
What is Catherine Loomis' office phone number?
The practice phone on file for Catherine Loomis is (781) 270-4700.
What is Catherine Loomis' medical license number?
Catherine Loomis holds California license PA57943.
What medical group is Catherine Loomis part of?
Catherine Loomis is linked to AFC Doctors Express Urgent Care Waltham.
Does Catherine Loomis accept Medicare?
Yes. CMS data shows Catherine Loomis billed Medicare for 483 services in 2024, and Catherine Loomis accepts Medicare assignment.
How many Medicare patients does Catherine Loomis see?
CMS counts 284 Medicare patients who saw Catherine Loomis in 2024, with an average age of 73.
What services does Catherine Loomis bill to Medicare?
In 2024, Catherine Loomis' most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and lab and pathology test (87635).
Where did Catherine Loomis go to medical school?
Catherine Loomis graduated from Tufts University School of Medicine in 2020.
What drugs does Catherine Loomis prescribe most?
In 2024 Medicare Part D data, Catherine Loomis' most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Albuterol Sulfate Hfa and Cephalexin.
How long has Catherine Loomis been practicing?
Catherine Loomis graduated from medical school in 2020, 6 years ago.
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