Susannah J. Clark, PA-C
- Medicare patients, 2024
- 82
- Part D claims, 2024
- 117
- Hospital affiliations
- 3
- Industry payments
- $85
- Medical groups
- 5
- Practice address
- 275 Varnum Ave, Lowell, MA 01854
- Practice phone
- Call (978) 458-4300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Riverside Surgical Associates
Lowell, Massachusetts
Find Susannah Clark'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.
Susannah J. Clark is a physician assistant in Lowell, Massachusetts
Susannah Clark practices at Riverside Surgical Associates in Lowell, Massachusetts.
Susannah Clark's NPI, 1770805202, was assigned on February 25, 2010. Susannah Clark holds Massachusetts license PA3930.
- NPI
- 1770805202NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012042195
- NPI enumeration date
- February 25, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (978) 458-4300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Susannah J. Clark practices at Riverside Surgical Associates in Lowell, Massachusetts
Susannah Clark's primary practice is Riverside Surgical Associates, at 275 Varnum Ave, Lowell, MA 01854 in Middlesex County. The practice phone is (978) 458-4300.
- Riverside Surgical Associates275 Varnum Ave, Lowell, MA 01854 · Middlesex CountyPhone(978) 458-4300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Susannah J. Clark is affiliated with 5 sites of care and 5 medical groups
Susannah Clark's primary practice is Riverside Surgical Associates in Lowell, Massachusetts. Susannah Clark is also affiliated with Lahey Clinic. The medical group on file is Steward Medical Group. Dmand AI also links Susannah Clark to 2 more hospitals, 4 medical groups and 1 group practice or clinic, 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 Susannah J. Clark's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Susannah Clark practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverside Surgical Associates | Available with a free account |
| +4 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Susannah J. Clark is one of 3,922 physician assistants in Massachusetts
Physician assistant is Susannah Clark's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Susannah Clark is licensed in Massachusetts.
Specialties and state licenses
- Physician assistant, MassachusettsPrimary
Physician assistants near Susannah Clark
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
Susannah J. Clark treated 82 Medicare patients in 2024, average age 74
CMS counts 82 Medicare patients who saw Susannah Clark in 2024. The largest group is 75 to 84, with 34 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Susannah Clark's median patient age at 52, with 55% women.
Susannah Clark's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Susannah Clark's Medicare patients by sex, 2024
- Women4555%
- Men3745%
Chronic conditions among Susannah Clark's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis54%
- Anxiety38%
- Mood disorders34%
- Chronic kidney disease28%
- Depression27%
- Diabetes27%
Share of Medicare patients with each condition. A patient can have several.
Susannah Clark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Susannah J. Clark wrote 117 Medicare Part D claims in 2024
In 2024, Susannah Clark wrote 117 Medicare Part D claims for 88 patients. 95% of them were for generic drugs.
Susannah Clark's Part D claims by kind of drug, 2024
- Generic111 claims95%
- Brand-name and other6 claims5%
Drug classes CMS tracks in Susannah Clark's Part D claims, 2024
- Opioids44%51 of 117 claims
- Antibiotics27%32 of 117 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
How Susannah J. Clark takes part in Medicare
Susannah Clark 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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Susannah J. Clark received $85 in industry payments in 2025
CMS Open Payments shows 3 general payments to Susannah Clark from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $35.
Companies that paid Susannah Clark the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Susannah J. Clark'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) |
| Part D prescribing | 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) |
| 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 Susannah J. Clark
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Susannah J. Clark's NPI number?
Susannah J. Clark's NPI number is 1770805202. It was assigned on February 25, 2010, and it is active in the NPI Registry.
What does Susannah J. Clark specialize in?
Susannah J. Clark is a physician assistant in Lowell, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Susannah J. Clark practice?
Susannah Clark practices at 275 Varnum Ave, Lowell, MA 01854. Susannah Clark's primary practice is Riverside Surgical Associates in Lowell, Massachusetts. Dmand AI also links Susannah Clark to 2 hospitals, 4 medical groups and 1 group practice or clinic.
What is Susannah J. Clark's office phone number?
The practice phone on file for Susannah Clark is (978) 458-4300.
What is Susannah J. Clark's medical license number?
Susannah Clark holds Massachusetts license PA3930.
Which hospitals is Susannah J. Clark affiliated with?
Susannah Clark is affiliated with Lahey Clinic. Dmand AI links Susannah Clark to 2 more hospitals.
What medical group is Susannah J. Clark part of?
Susannah Clark is linked to Steward Medical Group. Dmand AI links Susannah Clark to 4 more medical groups.
Does Susannah J. Clark accept Medicare?
Yes. CMS lists Susannah Clark as accepting Medicare assignment.
How many Medicare patients does Susannah J. Clark see?
CMS counts 82 Medicare patients who saw Susannah Clark in 2024, with an average age of 74.
Has Susannah J. Clark received payments from drug or device companies?
CMS Open Payments shows $85 in general payments to Susannah Clark from 3 companies from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Susannah J. Clark been practicing?
Susannah Clark graduated from medical school in 2009, 17 years ago.
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