Cassie Marie Lewis, NP
- Medicare services, 2024
- 100
- Medicare patients, 2024
- 105
- Part D claims, 2024
- 752
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- Practice address
- 9394 Big Horn Blvd, Elk Grove, CA 95758
- Practice phone
- Call (916) 733-3397
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mercy Medical Group, a Service of Dignity Health Medical Foundation
Elk Grove, California
Find Cassie Lewis' professional email, personal email and mobile number
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Cassie Marie Lewis is a family nurse practitioner in Elk Grove, California
Cassie Lewis practices at Mercy Medical Group, a Service of Dignity Health Medical Foundation in Elk Grove, California.
Cassie Lewis' NPI, 1841688041, was assigned on December 23, 2014. Cassie Lewis holds California license 95002113.
- NPI
- 1841688041NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557674777
- NPI enumeration date
- December 23, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (916) 733-3397
- 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)
Cassie Marie Lewis practices at Mercy Medical Group, a Service of Dignity Health Medical Foundation in Elk Grove, California
Cassie Lewis' primary practice is Mercy Medical Group, a Service of Dignity Health Medical Foundation, at 9394 Big Horn Blvd, Elk Grove, CA 95758 in Sacramento County. The practice phone is (916) 733-3397.
- Mercy Medical Group, a Service of Dignity Health Medical Foundation9394 Big Horn Blvd, Elk Grove, CA 95758 · Sacramento CountyPhone(916) 733-3397
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Cassie Marie Lewis is affiliated with 3 sites of care and 3 medical groups
Cassie Lewis' primary practice is Mercy Medical Group, a Service of Dignity Health Medical Foundation in Elk Grove, California. Cassie Lewis is also affiliated with Dignity Health - Methodist Hospital of Sacramento. The medical group on file is Mercy Medical Group. Dmand AI also links Cassie Lewis to 2 more 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 Cassie Marie Lewis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Cassie Lewis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Medical Group, a Service of Dignity Health Medical Foundation | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Cassie Marie Lewis is one of 13,532 family nurse practitioners in California
Family is Cassie Lewis' primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Cassie Lewis is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Clinical focus
Dmand AI lists acute sinusitis, contact dermatitis, lower back pain, minor injury to a limb, muscle pain, fibromyalgia, and limb pain, upper respiratory infection (URI) and UTI among the conditions Cassie Lewis treats.
Family nurse practitioners near Cassie Lewis
Counts of family nurse practitioners 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
Cassie Marie Lewis billed Medicare for 100 services in 2024
CMS data shows 100 Medicare services from Cassie Lewis across 4 procedure codes in 2024, for 105 Medicare patients. Medicare paid $7,221 for them. Every service was in an office.
Cassie Lewis' Medicare services by type, 2024
- Office and hospital visits89
- Lab and pathology11
Cassie Lewis compared with the California median for family nurse practitioners, 2024
- Cassie Lewis
- California median
- Medicare services
- 100vs 23457% below
- Medicare patients
- 105vs 9017% above
- Part D claims
- 334vs 3607% below
Medians across 6,382 family nurse practitioners in California with Dmand AI profiles that report each measure.
Cassie Lewis' 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
Cassie Marie Lewis treated 105 Medicare patients in 2024, average age 71
CMS counts 105 Medicare patients who saw Cassie Lewis in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 41% are also on Medicaid. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Cassie Lewis' median patient age at 49, with 69% women.
Cassie Lewis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Cassie Lewis' Medicare patients by sex, 2024
- Women7370%
- Men3230%
Chronic conditions among Cassie Lewis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Diabetes32%
- Chronic kidney disease30%
- Mood disorders30%
- Anxiety27%
- Depression25%
Share of Medicare patients with each condition. A patient can have several.
Cassie Lewis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Cassie Marie Lewis wrote 752 Medicare Part D claims in 2024
In 2024, Cassie Lewis wrote 752 Medicare Part D claims for 327 patients. 86% of them were for generic drugs. CMS names the drug for 334 of them, across 18 drugs with 11 or more claims each, at $5,975 in total drug cost.
Cassie Lewis' Part D claims by kind of drug, 2024
- Generic644 claims86%
- Brand-name and other108 claims14%
Cassie Lewis' 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 Cassie Lewis' Part D claims, 2024
- Opioids8%57 of 752 claims
- Antibiotics9%67 of 752 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
Cassie Marie Lewis scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Cassie Lewis for performance year 2024, reported through an alternative payment model (APM). Cassie Lewis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Cassie Lewis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Cassie Lewis' MIPS scores, performance year 2024
- 100of 100Final score
- 86.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Cassie Marie Lewis received $64 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Cassie Lewis from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $41.
General payments to Cassie Lewis by program year, 2024 to 2025
Companies that paid Cassie Lewis the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Cassie Marie Lewis's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Cassie Marie Lewis
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What is Cassie Marie Lewis' NPI number?
Cassie Marie Lewis' NPI number is 1841688041. It was assigned on December 23, 2014, and it is active in the NPI Registry.
What does Cassie Marie Lewis specialize in?
Cassie Marie Lewis is a family nurse practitioner in Elk Grove, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Cassie Marie Lewis practice?
Cassie Lewis practices at 9394 Big Horn Blvd, Elk Grove, CA 95758. Cassie Lewis' primary practice is Mercy Medical Group, a Service of Dignity Health Medical Foundation in Elk Grove, California. Dmand AI also links Cassie Lewis to 2 medical groups and 1 group practice or clinic.
What is Cassie Marie Lewis' office phone number?
The practice phone on file for Cassie Lewis is (916) 733-3397.
What is Cassie Marie Lewis' medical license number?
Cassie Lewis holds California license 95002113.
Which hospitals is Cassie Marie Lewis affiliated with?
Cassie Lewis is affiliated with Dignity Health - Methodist Hospital of Sacramento.
What medical group is Cassie Marie Lewis part of?
Cassie Lewis is linked to Mercy Medical Group. Dmand AI links Cassie Lewis to 2 more medical groups.
Does Cassie Marie Lewis accept Medicare?
Yes. CMS data shows Cassie Lewis billed Medicare for 100 services in 2024, and Cassie Lewis accepts Medicare assignment.
Does Cassie Marie Lewis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Cassie Lewis as offering telehealth services.
What is Cassie Marie Lewis' MIPS score?
Cassie Lewis' MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
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How many Medicare patients does Cassie Marie Lewis see?
CMS counts 105 Medicare patients who saw Cassie Lewis in 2024, with an average age of 71.
What services does Cassie Marie Lewis bill to Medicare?
In 2024, Cassie Lewis' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and lab and pathology test (81003).
What drugs does Cassie Marie Lewis prescribe most?
In 2024 Medicare Part D data, Cassie Lewis' most prescribed drugs by claims were Albuterol Sulfate Hfa, Hydrocodone-Acetaminophen and Lisinopril.
Has Cassie Marie Lewis received payments from drug or device companies?
CMS Open Payments shows $64 in general payments to Cassie Lewis from 2 companies from 2024 to 2025. The largest total came from Abbvie Inc.
How long has Cassie Marie Lewis been practicing?
Cassie Lewis graduated from medical school in 2009, 17 years ago.
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