Dr. Stephen James Rossiter, MD

  • Sacramento, CA
  • Surgical assistant
NPI1356391080PAC ID5698751063
Medicare services, 2024
146
Medicare patients, 2024
79
Publications
76
MIPS score, 2024
100
Hospital affiliations
3
Practice address
4001 J St, Sacramento, CA 95819
Practice phone
Call (916) 453-4453
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Dignity Health - Mercy General Hospital

Hospital · Sacramento, California

See all 7 affiliations

Find Dr. Rossiter'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.

View contacts for free

Dr. Stephen James Rossiter is a surgical assistant in Sacramento, California

Dr. Rossiter practices at Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health.

Dr. Rossiter's NPI, 1356391080, was assigned on May 11, 2006. Dr. Rossiter graduated from University Of Michigan Medical School in 1971. Dr. Rossiter holds California license G23293.

NPI and contact details
Medicare PAC ID
5698751063
NPI enumeration date
May 11, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(916) 453-4453
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
81
Medical school graduation
1971

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Stephen James Rossiter practices at Dignity Health - Mercy General Hospital in Sacramento, California

Dr. Rossiter's primary practice is Dignity Health - Mercy General Hospital, at 4001 J St, Sacramento, CA 95819 in Sacramento County. The practice phone is (916) 453-4453.

Source: Dmand AI Affiliation Data

Dr. Stephen James Rossiter is affiliated with 5 sites of care and 2 medical groups

Dr. Rossiter's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Dr. Rossiter is also affiliated with Dignity Health - Mercy San Juan Medical Center. The medical group on file is Mercy Medical Group. Dmand AI also links Dr. Rossiter to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Rossiter

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Stephen James Rossiter's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rossiter practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Dignity Health - Mercy General HospitalAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Rossiter practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across CommonSpirit Health and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Stephen James Rossiter is one of 2 surgical assistants in California

Surgical assistant is Dr. Rossiter's primary specialty in the NPI Registry, under taxonomy code 246ZC0007X. Dr. Rossiter is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery. Dr. Rossiter is licensed in California.

Specialties and state licenses

  • Surgical assistant, CaliforniaPrimaryLicense G23293 · 1972 to 2026 · taxonomy 246ZC0007X

Surgical assistants near Dr. Rossiter

Counts of surgical assistants with a Dmand AI profile, by place and practice. Each opens the list.

2surgical assistants in California

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Stephen James Rossiter billed Medicare for 146 services in 2024

CMS data shows 146 Medicare services from Dr. Rossiter across 6 procedure codes in 2024, for 79 Medicare patients. Medicare paid $15,815 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024146
Medicare patients79
Paid by Medicare$15,815
Procedure codes6

Dr. Rossiter's 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.

See all procedures by Dr. Rossiter

Need commercial claims for Dr. Rossiter?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rossiter and other surgical assistants in California.

Book a meeting

Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data

Dr. Stephen James Rossiter treated 79 Medicare patients in 2024, average age 72

CMS counts 79 Medicare patients who saw Dr. Rossiter in 2024. The largest group is 65 to 74, with 50 patients. 75% of them have atrial fibrillation, and 75% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Rossiter's median patient age at 64, with 27% women.

Medicare patients, 202479
Average age72
Average risk score1.21
Also on Medicaid19%

Dr. Rossiter's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Rossiter's Medicare patients by sex, 2024

  • Women2228%
  • Men5772%

Chronic conditions among Dr. Rossiter's Medicare patients, 2024

  1. Atrial fibrillation75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Ischemic heart disease75%
  5. Heart failure61%
  6. Arthritis44%
  7. Chronic kidney disease42%
  8. Diabetes35%

Share of Medicare patients with each condition. A patient can have several.

Dr. Rossiter's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women27%
  • Men71%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Stephen James Rossiter 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 Dr. Rossiter for performance year 2024, reported through an alternative payment model (APM). Dr. Rossiter accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 53 procedures of coronary artery bypass graft (cabg) by Dr. Rossiter, more than 96% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Rossiter's 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.

Where Dr. Rossiter ranks in Medicare procedure volume

Coronary artery bypass graft (CABG)
96th percentile53 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

Find surgical assistants like Dr. Rossiter by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Stephen James Rossiter has 76 publications on record

Dmand AI links 76 papers to Dr. Rossiter, published from 2007 to 2023. 2014 was the busiest year, with 7. The most frequent topics are Chiroptera, Phylogeny and Evolution, Molecular. Dr. Rossiter has published most often in PLoS One. Dr. Rossiter's most frequent co-authors are David Craig Miller, MD, Bruce Reitz, MD and Philip Oyer, MD.

Papers76
Years published2007 to 2023

Dr. Rossiter's papers by year, 2013 to 2023

Topics Dr. Rossiter writes about most

  • Chiroptera
  • Phylogeny
  • Evolution, Molecular
  • DNA, Mitochondrial
  • Biological Evolution
  • Microsatellite Repeats
  • Sequence Analysis, DNA
  • Echolocation

Dr. Rossiter's most frequent co-authors

Recent publications by Dr. Rossiter

See all 76 publications and co-authors

See who Dr. Rossiter researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rossiter works with, so you can find a warm path to the right surgical assistants.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Stephen James Rossiter received $96 in industry payments in 2024

CMS Open Payments shows 1 general payment to Dr. Rossiter from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Abiomed paid the most, $96.

Companies that paid Dr. Rossiter the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Rossiter

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

Dr. Stephen James Rossiter has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Rossiter.

Awards and honors for Dr. Rossiter

  1. Undated
    • ACC Fellow
    • ACS Fellow

Source: Dmand AI Professional Profile Data

Dr. Stephen James Rossiter graduated from University Of Michigan Medical School

Dr. Rossiter graduated from University Of Michigan Medical School in 1971. Dr. Rossiter is a member of ACC and ACS.

  1. Medical schoolUniversity Of Michigan Medical School
  2. Board certified in thoracic and cardiac surgeryAmerican Board of Thoracic Surgery

Source: Dmand AI Professional Profile Data

Dr. Stephen James Rossiter accepts plans from 5 insurance carriers

Dr. Rossiter is in network with 5 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and Regence Health Plans. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • Molina

Plan types Dr. Rossiter accepts, by number of carriers

  1. Medicare5
  2. PPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. Stephen James Rossiter'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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 Dr. Stephen James Rossiter

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

What is Dr. Stephen James Rossiter's NPI number?

Dr. Stephen James Rossiter's NPI number is 1356391080. It was assigned on May 11, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen James Rossiter?

Dr. Stephen James Rossiter is a surgical assistant in Sacramento, California. The primary specialty in the NPI Registry is Surgical Assistant (taxonomy code 246ZC0007X).

Where does Dr. Stephen James Rossiter practice?

Dr. Rossiter practices at 4001 J St, Sacramento, CA 95819. Dr. Rossiter's primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Dmand AI also links Dr. Rossiter to 1 hospital, 2 group practices and clinics and 1 medical group.

What is Dr. Stephen James Rossiter's office phone number?

The practice phone on file for Dr. Rossiter is (916) 453-4453.

What is Dr. Stephen James Rossiter's medical license number?

Dr. Rossiter holds California license G23293.

Which hospitals is Dr. Stephen James Rossiter affiliated with?

Dr. Rossiter practices at Dignity Health - Mercy General Hospital in Sacramento, California. Dr. Rossiter is also affiliated with Dignity Health - Mercy San Juan Medical Center. Dmand AI links Dr. Rossiter to 1 more hospital.

What medical group is Dr. Stephen James Rossiter part of?

Dr. Rossiter is linked to Mercy Medical Group. Dmand AI links Dr. Rossiter to 1 more medical group.

Does Dr. Stephen James Rossiter accept Medicare?

Yes. CMS data shows Dr. Rossiter billed Medicare for 146 services in 2024, and Dr. Rossiter accepts Medicare assignment.

What is Dr. Stephen James Rossiter's MIPS score?

Dr. Rossiter's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Stephen James Rossiter see?

CMS counts 79 Medicare patients who saw Dr. Rossiter in 2024, with an average age of 72.

Show 8 more questionsShow fewer questions

Is Dr. Stephen James Rossiter board certified?

Yes. Dr. Rossiter is board certified in thoracic and cardiac surgery by the American Board of Thoracic Surgery.

What services does Dr. Stephen James Rossiter bill to Medicare?

In 2024, Dr. Rossiter's most billed Medicare services were surgery: heart and blood vessels (33508), surgery: heart and blood vessels (33533) and surgery: heart and blood vessels (33519).

Where did Dr. Stephen James Rossiter go to medical school?

Dr. Rossiter graduated from University Of Michigan Medical School in 1971.

Has Dr. Stephen James Rossiter received payments from drug or device companies?

CMS Open Payments shows $96 in general payments to Dr. Rossiter from 1 company from 2024 to 2024. The largest total came from Abiomed.

How long has Dr. Stephen James Rossiter been practicing?

Dr. Rossiter graduated from medical school in 1971, 55 years ago.

Does Dr. Stephen James Rossiter do research?

Dmand AI links 76 publications to Dr. Rossiter, published from 2007 to 2023.

Who does Dr. Stephen James Rossiter publish with?

Dr. Rossiter's most frequent co-authors are David Craig Miller, MD (7 shared papers), Bruce Reitz, MD (7 shared papers) and Philip Oyer, MD (4 shared papers).

What insurance does Dr. Stephen James Rossiter accept?

Dr. Rossiter is in network with 5 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and Regence Health Plans. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

Selling to surgical assistant practices?

See surgical assistants in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)