Marissa S. Stein, CRNA

  • Napa, CA
  • Nurse anesthetist
NPI1346256518PAC ID6204816309
Medicare patients, 2024
458
MIPS score, 2024
86
Hospital affiliations
1
Medical groups
2
State licenses
2
Practice address
800 Trancas Street, Suite B, Napa, CA 94558
Practice phone
Call (707) 681-0356
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Precision Surgery Center of Napa Valley

Surgery Center - Medicare-Certified · Napa, California

See all 4 affiliations

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Marissa S. Stein is a nurse anesthetist in Napa, California

Marissa Stein practices at Precision Surgery Center of Napa Valley in Napa, California.

Marissa Stein's NPI, 1346256518, was assigned on July 31, 2006. Marissa Stein holds California license NA3060.

NPI and contact details
Medicare PAC ID
6204816309
NPI enumeration date
July 31, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(707) 681-0356
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
50
Medical school graduation
2002

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

Marissa S. Stein practices at Precision Surgery Center of Napa Valley in Napa, California

Marissa Stein's primary practice is Precision Surgery Center of Napa Valley, at 800 Trancas Street, Suite B, Napa, CA 94558. The practice phone is (707) 681-0356.

  • Precision Surgery Center of Napa Valley
    800 Trancas Street, Suite B, Napa, CA 94558Phone(707) 681-0356

Source: Dmand AI Affiliation Data

Marissa S. Stein is affiliated with 2 sites of care and 2 medical groups

Marissa Stein's primary practice is Precision Surgery Center of Napa Valley in Napa, California. Marissa Stein is also affiliated with Adventist Health St. Helena. The medical group on file is Anesthesia Services of Napa Valley. Dmand AI also links Marissa Stein to 1 more medical group, named with a free account.

See all 4 affiliations for Marissa Stein

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

Dmand AI tracks the EHR system at Marissa S. Stein's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Marissa Stein practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Precision Surgery Center of Napa ValleyAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Marissa S. Stein is one of 2,410 nurse anesthetists in California

Nurse anesthetist, certified registered is Marissa Stein's primary specialty in the NPI Registry, under taxonomy code 367500000X. Dmand AI has Marissa Stein's licenses on file in 2 states: California and Massachusetts.

Specialties and state licenses

  • Certified registered nurse anesthetist, CaliforniaPrimaryLicense NA3060 · taxonomy 367500000X
  • Massachusetts licenseLicense 240985

Nurse anesthetists near Marissa Stein

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

2,410nurse anesthetists in California
5nurse anesthetists in Napa

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

Marissa S. Stein treated 458 Medicare patients in 2024, average age 74

CMS counts 458 Medicare patients who saw Marissa Stein in 2024. The largest group is 65 to 74, with 216 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 20% 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 Marissa Stein's median patient age at 71, with 58% women.

Medicare patients, 2024458
Average age74
Average risk score1.11
Also on Medicaid20%

Marissa Stein's Medicare patients by age, 2024

Marissa Stein's Medicare patients by sex, 2024

  • Women26959%
  • Men18941%

Chronic conditions among Marissa Stein's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure73%
  3. Arthritis51%
  4. Diabetes29%
  5. Atrial fibrillation25%
  6. Ischemic heart disease24%
  7. Mood disorders21%
  8. Anxiety20%

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

Marissa Stein's patients across all payers

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

Patient panel by age, all payers

Median age 71

Patient panel by sex, all payers

  • Women58%
  • Men42%

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

Marissa S. Stein scored 86 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Marissa Stein for performance year 2024, reported as part of a group. Marissa Stein accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Marissa Stein's MIPS scores, performance year 2024

  • 86of 100Final score
  • 75.5of 100Quality
  • 94of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

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

Sources for Marissa S. Stein'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 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)
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 Marissa S. Stein

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

What is Marissa S. Stein's NPI number?

Marissa S. Stein's NPI number is 1346256518. It was assigned on July 31, 2006, and it is active in the NPI Registry.

What does Marissa S. Stein specialize in?

Marissa S. Stein is a nurse anesthetist in Napa, California. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).

Where does Marissa S. Stein practice?

Marissa Stein practices at 800 Trancas Street, Suite B, Napa, CA 94558. Marissa Stein's primary practice is Precision Surgery Center of Napa Valley in Napa, California. Dmand AI also links Marissa Stein to 1 medical group.

What is Marissa S. Stein's office phone number?

The practice phone on file for Marissa Stein is (707) 681-0356.

What is Marissa S. Stein's medical license number?

Marissa Stein holds California license NA3060, one of the licenses on file in 2 states.

Which states has Marissa S. Stein been licensed in?

Dmand AI has state licenses on file for Marissa Stein in California and Massachusetts.

Which hospitals is Marissa S. Stein affiliated with?

Marissa Stein is affiliated with Adventist Health St. Helena.

What medical group is Marissa S. Stein part of?

Marissa Stein is linked to Anesthesia Services of Napa Valley. Dmand AI links Marissa Stein to 1 more medical group.

Does Marissa S. Stein accept Medicare?

Yes. CMS lists Marissa Stein as accepting Medicare assignment.

What is Marissa S. Stein's MIPS score?

Marissa Stein's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.

How many Medicare patients does Marissa S. Stein see?

CMS counts 458 Medicare patients who saw Marissa Stein in 2024, with an average age of 74.

How long has Marissa S. Stein been practicing?

Marissa Stein graduated from medical school in 2002, 24 years ago.

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