Cassie Marie Lewis, NP

  • Elk Grove, CA
  • Family nurse practitioner
NPI1841688041PAC ID1557674777
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
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Social profiles

Primary practice

Mercy Medical Group, a Service of Dignity Health Medical Foundation

Elk Grove, California

See all 6 affiliations

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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 and contact details
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 Foundation
    9394 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.

See all 6 affiliations for Cassie Lewis

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.

EHR by site
SiteEHR vendor and product
Mercy Medical Group, a Service of Dignity Health Medical FoundationAvailable with a free account
+2 more sites and 2 medical groupsAvailable 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, CaliforniaPrimaryLicense 95002113 · taxonomy 363LF0000X

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.

Medicare services, 2024100
Medicare patients105
Paid by Medicare$7,221
Procedure codes4

Cassie Lewis' Medicare services by type, 2024

  1. Office and hospital visits89
  2. 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.

Medicare patients, 2024105
Average age71
Average risk score1.22
Also on Medicaid41%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis58%
  4. Diabetes32%
  5. Chronic kidney disease30%
  6. Mood disorders30%
  7. Anxiety27%
  8. 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.

Part D claims, 2024752
Drugs named by CMS18
Total drug cost$5,975
Part D patients327

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.

See all prescribing by Cassie Lewis

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

For MedTech and pharma teams

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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.

See all payments to Cassie Lewis

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Cassie Marie Lewis'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 services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
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 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (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 Cassie Marie Lewis

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

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).

Show 5 more questionsShow fewer questions

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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