Dr. Mariana Schmajuk, MD

  • Stanford, CA
  • Psychiatrist
NPI1275808479PAC ID7719255330
Medicare services, 2022
77
Part D claims, 2021
15
Publications
7
MIPS score, 2024
89
Hospital affiliations
2
Practice address
300 Pasteur Drive, Stanford, CA 94305
Practice phone
Call (650) 723-4000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Stanford Hospital at 300 Pasteur Drive

Hospital · Stanford, California

See all 4 affiliations

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Dr. Mariana Schmajuk is a psychiatrist in Stanford, California

Dr. Schmajuk practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

Dr. Schmajuk's NPI, 1275808479, was assigned on March 21, 2012. Dr. Schmajuk graduated from Boston University School Of Medicine in 2012. Dr. Schmajuk holds California license A149494.

NPI and contact details
Medicare PAC ID
7719255330
NPI enumeration date
March 21, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(650) 723-4000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
40
Medical school graduation
2012

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

Dr. Mariana Schmajuk practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California

Dr. Schmajuk's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.

Source: Dmand AI Affiliation Data

Dr. Mariana Schmajuk is affiliated with 2 sites of care and 2 medical groups

Dr. Schmajuk's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Schmajuk to 1 more hospital and 1 medical group, each named with a free account. Dr. Schmajuk's employer is on file too: a hospital.

See all 4 affiliations for Dr. Schmajuk

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

Dmand AI tracks the EHR system at Dr. Mariana Schmajuk's practice

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

EHR by site
SiteEHR vendor and product
Stanford Hospital at 300 Pasteur DriveAvailable 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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Dr. Mariana Schmajuk is one of 6,803 psychiatrists in California

Psychiatry is Dr. Schmajuk's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Schmajuk is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Schmajuk's licenses on file in 2 states: California and New York.

Specialties and state licenses

  • Psychiatry, CaliforniaPrimaryLicense A149494 · 2017 to 2026 · taxonomy 2084P0800X
  • New York license2014 to 2019

Psychiatrists near Dr. Schmajuk

Counts of psychiatrists 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

Dr. Mariana Schmajuk billed Medicare for 77 services in 2022

CMS data shows 77 Medicare services from Dr. Schmajuk across 2 procedure codes in 2022. Medicare paid $7,224 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202277
Paid by Medicare$7,224
Procedure codes2

Dr. Schmajuk's Medicare services by type, 2021 to 2022

  • 2021
  • 2022
Office and hospital visits
2021: 2722022: 7772%
Other services
2021: 852022: 0100%

Dr. Schmajuk compared with the California median for psychiatrists, 2022

  • Dr. Schmajuk
  • California median
Medicare services
77vs 11935% below
Part D claims
15vs 14490% below

Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.

Dr. Schmajuk's most billed Medicare procedure codes, 2022

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. Schmajuk

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mariana Schmajuk's patients have a median age of 36

Across all payers, Dmand AI patient panel data puts Dr. Schmajuk's median patient age at 36, with 62% women.

Dr. Schmajuk's patients across all payers

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

Patient panel by age, all payers

Median age 36

Patient panel by sex, all payers

  • Women62%
  • Men37%

Source: Dmand AI Patient Panel Data

Dr. Mariana Schmajuk wrote 15 Medicare Part D claims in 2021

In 2021, Dr. Schmajuk wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $95 in total drug cost. In 2020, CMS named 156 claims across 7 drugs.

Part D claims, 202115
Drugs named by CMS1
Total drug cost$95

Dr. Schmajuk's most prescribed drugs by claims, 2021

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 1562021: 1590%

Drugs named by CMS: 1 in 2021, 7 in 2020.

See all prescribing by Dr. Schmajuk

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

Dr. Mariana Schmajuk scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Schmajuk for performance year 2024, reported as part of a group. Dr. Schmajuk accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Schmajuk as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Schmajuk's MIPS scores, performance year 2024

  • 89of 100Final score
  • 87.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 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

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Dr. Mariana Schmajuk has 7 publications on record

Dmand AI links 7 papers to Dr. Schmajuk, published from 2005 to 2020. The most frequent topics are Bipolar Disorder, Attention and Psychiatric Status Rating Scales. Dr. Schmajuk has published most often in Biol Psychiatry. Dr. Schmajuk's most frequent co-authors are Daniel Samuel Pine, MD, Markus Yashavant Mapara, MD and Adrienne D. Mishkin, MD, MPH.

Papers7
Years published2005 to 2020

Topics Dr. Schmajuk writes about most

  • Bipolar Disorder
  • Attention
  • Psychiatric Status Rating Scales
  • Affect
  • Anxiety Disorders
  • Attention Deficit and Disruptive Behavior Disorders
  • Electroencephalography
  • Evoked Potentials

Dr. Schmajuk's most frequent co-authors

Recent publications by Dr. Schmajuk

See all 7 publications and co-authors

See who Dr. Schmajuk researches with

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

How network discovery works

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

Dr. Mariana Schmajuk graduated from Boston University School Of Medicine

Dr. Schmajuk graduated from Boston University School Of Medicine in 2012.

  1. Medical schoolBoston University School Of Medicine
  2. Board certified in psychiatryAmerican Board of Psychiatry and Neurology
  3. Board certified in psychosomatic medicineAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Mariana Schmajuk accepts plans from 9 insurance carriers

Dr. Schmajuk is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • NV State Medicaid
  • +1 more carriersWith a free account

Plan types Dr. Schmajuk accepts, by number of carriers

  1. Medicare8
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mariana Schmajuk'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)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Mariana Schmajuk

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. Mariana Schmajuk's NPI number?

Dr. Mariana Schmajuk's NPI number is 1275808479. It was assigned on March 21, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Mariana Schmajuk?

Dr. Mariana Schmajuk is a psychiatrist in Stanford, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Mariana Schmajuk practice?

Dr. Schmajuk practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Schmajuk's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Schmajuk to 1 hospital and 1 medical group.

What is Dr. Mariana Schmajuk's office phone number?

The practice phone on file for Dr. Schmajuk is (650) 723-4000.

What is Dr. Mariana Schmajuk's medical license number?

Dr. Schmajuk holds California license A149494, one of the licenses on file in 2 states.

Which states has Dr. Mariana Schmajuk been licensed in?

Dmand AI has state licenses on file for Dr. Schmajuk in California (2017 to 2026) and New York (2014 to 2019).

Which hospitals is Dr. Mariana Schmajuk affiliated with?

Dr. Schmajuk practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Schmajuk to 1 more hospital.

What medical group is Dr. Mariana Schmajuk part of?

Dr. Schmajuk is linked to Stanford Health Care. Dmand AI links Dr. Schmajuk to 1 more medical group.

Does Dr. Mariana Schmajuk accept Medicare?

Yes. CMS data shows Dr. Schmajuk billed Medicare for 77 services in 2022, and Dr. Schmajuk accepts Medicare assignment.

Does Dr. Mariana Schmajuk offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Schmajuk as offering telehealth services.

Show 9 more questionsShow fewer questions

What is Dr. Mariana Schmajuk's MIPS score?

Dr. Schmajuk's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

Is Dr. Mariana Schmajuk board certified?

Yes. Dr. Schmajuk is board certified in psychiatry by the American Board of Psychiatry and Neurology.

What services does Dr. Mariana Schmajuk bill to Medicare?

In 2022, Dr. Schmajuk's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99222).

Where did Dr. Mariana Schmajuk go to medical school?

Dr. Schmajuk graduated from Boston University School Of Medicine in 2012.

What drugs does Dr. Mariana Schmajuk prescribe most?

In 2021 Medicare Part D data, Dr. Schmajuk's most prescribed drugs by claims were Fluoxetine HCl.

How long has Dr. Mariana Schmajuk been practicing?

Dr. Schmajuk graduated from medical school in 2012, 14 years ago.

Does Dr. Mariana Schmajuk do research?

Dmand AI links 7 publications to Dr. Schmajuk, published from 2005 to 2020.

Who does Dr. Mariana Schmajuk publish with?

Dr. Schmajuk's most frequent co-authors are Daniel Samuel Pine, MD (5 shared papers), Markus Yashavant Mapara, MD (1 shared paper) and Adrienne D. Mishkin, MD, MPH (1 shared paper).

What insurance does Dr. Mariana Schmajuk accept?

Dr. Schmajuk is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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