Erika S. Stewart, NP
- Medicare patients, 2024
- 103
- Part D claims, 2024
- 87
- Hospital affiliations
- 1
- Industry payments
- $58
- Medical group
- 1
- Practice address
- 344 S Hauser Blvd, Los Angeles, CA 90036
- Practice phone
- Call (716) 845-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Roswell Park Cancer Institute
Los Angeles, California
Find Erika Stewart'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.
Erika S. Stewart is a nurse practitioner in Los Angeles, California
Erika Stewart practices at Roswell Park Cancer Institute in Los Angeles, California.
Erika Stewart's NPI, 1477694701, was assigned on February 9, 2007. Erika Stewart graduated from Perelman School of Med at the University of Pennsylvania in 1994. Erika Stewart holds New York license F303431.
- NPI
- 1477694701NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628087673
- NPI enumeration date
- February 9, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 845-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Erika S. Stewart practices at Roswell Park Cancer Institute in Los Angeles, California
Erika Stewart's primary practice is Roswell Park Cancer Institute, at 344 S Hauser Blvd, Los Angeles, CA 90036 in Los Angeles County. The practice phone is (716) 845-2300.
- Roswell Park Cancer Institute344 S Hauser Blvd, Los Angeles, CA 90036 · Los Angeles CountyPhone(716) 845-2300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Erika S. Stewart is affiliated with 2 sites of care and 1 medical group
Erika Stewart's primary practice is Roswell Park Cancer Institute in Los Angeles, California. Erika Stewart is also affiliated with Roswell Park Comprehensive Cancer Center. The medical group on file is Roswell Park Comprehensive Cancer Center.
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 Erika S. Stewart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Erika Stewart practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roswell Park Cancer Institute | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Erika S. Stewart is one of 5,983 nurse practitioners in California
Nurse practitioner is Erika Stewart's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Erika Stewart is licensed in New York.
Specialties and state licenses
- Nurse practitioner, New YorkPrimary
Nurse practitioners near Erika Stewart
Counts of 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
Erika S. Stewart treated 103 Medicare patients in 2024, average age 73
CMS counts 103 Medicare patients who saw Erika Stewart in 2024. The largest group is 65 to 74, with 44 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Erika Stewart's median patient age at 70, with 50% women.
Erika Stewart's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Erika Stewart's Medicare patients by sex, 2024
- Women5654%
- Men4746%
Chronic conditions among Erika Stewart's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis39%
- Cancer32%
- Chronic kidney disease30%
- Anxiety28%
- Diabetes27%
- COPD24%
Share of Medicare patients with each condition. A patient can have several.
Erika Stewart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Erika S. Stewart wrote 87 Medicare Part D claims in 2024
In 2024, Erika Stewart wrote 87 Medicare Part D claims for 47 patients. 80% of them were for generic drugs.
Erika Stewart's Part D claims by kind of drug, 2024
- Generic70 claims80%
- Brand-name17 claims20%
Drug classes CMS tracks in Erika Stewart's Part D claims, 2024
- Opioids21%18 of 87 claims
- Antibiotics29%25 of 87 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 Erika S. Stewart takes part in Medicare
Erika Stewart 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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Erika S. Stewart received $58 in industry payments in 2025
CMS Open Payments shows 1 general payment to Erika Stewart from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Iovance Biotherapeutics, Inc. paid the most, $58.
Companies that paid Erika Stewart the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Erika S. Stewart graduated from Perelman School of Med at the University of Pennsylvania
Erika Stewart graduated from Perelman School of Med at the University of Pennsylvania in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Erika S. Stewart'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 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) |
| 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 Erika S. Stewart
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Erika S. Stewart's NPI number?
Erika S. Stewart's NPI number is 1477694701. It was assigned on February 9, 2007, and it is active in the NPI Registry.
What does Erika S. Stewart specialize in?
Erika S. Stewart is a nurse practitioner in Los Angeles, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Erika S. Stewart practice?
Erika Stewart practices at 344 S Hauser Blvd, Los Angeles, CA 90036. Erika Stewart's primary practice is Roswell Park Cancer Institute in Los Angeles, California.
What is Erika S. Stewart's office phone number?
The practice phone on file for Erika Stewart is (716) 845-2300.
What is Erika S. Stewart's medical license number?
Erika Stewart holds New York license F303431.
Which hospitals is Erika S. Stewart affiliated with?
Erika Stewart is affiliated with Roswell Park Comprehensive Cancer Center.
What medical group is Erika S. Stewart part of?
Erika Stewart is linked to Roswell Park Comprehensive Cancer Center.
Does Erika S. Stewart accept Medicare?
Yes. CMS lists Erika Stewart as accepting Medicare assignment.
How many Medicare patients does Erika S. Stewart see?
CMS counts 103 Medicare patients who saw Erika Stewart in 2024, with an average age of 73.
Where did Erika S. Stewart go to medical school?
Erika Stewart graduated from Perelman School of Med at the University of Pennsylvania in 1994.
Has Erika S. Stewart received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Erika Stewart from 1 company from 2025 to 2025. The largest total came from Iovance Biotherapeutics, Inc.
How long has Erika S. Stewart been practicing?
Erika Stewart graduated from medical school in 1994, 32 years ago.
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