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Dr. Timothy Daniel Stark, MD
NPI1215145032PAC ID9032206503
- Medicare services, 2024
- 120
- Medicare patients, 2024
- 193
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $172
- Practice address
- 250 Bon Air Road, Greenbrae, CA 94904
- Practice phone
- Call (415) 925-7900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stark's professional email, personal email and mobile number
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Dr. Timothy Daniel Stark is an anesthesiologist in Greenbrae, California
Dr. Stark practices at MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District.
Dr. Stark's NPI, 1215145032, was assigned on May 18, 2007. Dr. Stark graduated from WashU Medicine in 2003. Dr. Stark holds California license A97662.
NPI and contact details
- NPI
- 1215145032NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032206503
- NPI enumeration date
- May 18, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 925-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy Daniel Stark practices at MarinHealth Medical Center in Greenbrae, California
Dr. Stark's primary practice is MarinHealth Medical Center, at 250 Bon Air Road, Greenbrae, CA 94904 in Marin County. The practice phone is (415) 925-7900.
- MarinHealth Medical Center250 Bon Air Road, Greenbrae, CA 94904 · Marin CountyPhone(415) 925-7900
Source: Dmand AI Affiliation Data
Dr. Timothy Daniel Stark is affiliated with 2 sites of care and 1 medical group
Dr. Stark's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District. Dr. Stark is also affiliated with Sonoma Valley Hospital. The medical group on file is Anesthesiology Consultants of Marin.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Timothy Daniel Stark's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stark practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MarinHealth Medical Center | Available with a free account |
| +1 more affiliated site | Available 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. Stark practices
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Dr. Timothy Daniel Stark is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Stark's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Stark is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Stark's licenses on file in 4 states: California, Hawaii, Florida and Ohio.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Hawaii license
- Florida license
- Ohio license
Anesthesiologists near Dr. Stark
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
6,593anesthesiologists in California31anesthesiologists in Greenbrae27anesthesiologists at MarinHealth Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Timothy Daniel Stark billed Medicare for 120 services in 2024
CMS data shows 120 Medicare services from Dr. Stark across 4 procedure codes in 2024, for 193 Medicare patients. Medicare paid $13,098 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024120
Medicare patients193
Paid by Medicare$13,098
Procedure codes4
Dr. Stark's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1222024: 1202%
- Surgery
- 2023: 112024: 0100%
Dr. Stark compared with the California median for anesthesiologists, 2024
- Dr. Stark
- California median
- Medicare services
- 120vs 7267% above
- Medicare patients
- 193vs 14335% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Stark'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.
Need commercial claims for Dr. Stark?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stark and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy Daniel Stark treated 193 Medicare patients in 2024, average age 76
CMS counts 193 Medicare patients who saw Dr. Stark in 2024. The largest group is 75 to 84, with 88 patients. 75% of them have high cholesterol, and 61% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Stark's median patient age at 65, with 43% women.
Medicare patients, 2024193
Average age76
Average risk score1.03
Also on Medicaid16%
Dr. Stark's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Stark's Medicare patients by sex, 2024
- Women9951%
- Men9449%
Chronic conditions among Dr. Stark's Medicare patients, 2024
- High cholesterol75%
- High blood pressure61%
- Arthritis54%
- Atrial fibrillation25%
- Anxiety24%
- Ischemic heart disease24%
- Cancer22%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women43%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Timothy Daniel Stark takes part in Medicare
Dr. Stark 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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Dr. Timothy Daniel Stark has 1 publication on record
Dmand AI links 1 paper to Dr. Stark in 2002.
Papers1
Recent publications by Dr. Stark
See who Dr. Stark researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stark works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Timothy Daniel Stark received $172 in industry payments in 2023
CMS Open Payments shows 7 general payments to Dr. Stark from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Sumitomo Pharma America, Inc. paid the most, $172.
Companies that paid Dr. Stark the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Timothy Daniel Stark graduated from WashU Medicine
Dr. Stark graduated from WashU Medicine in 2003.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Timothy Daniel Stark accepts plans from 2 insurance carriers
Dr. Stark is in network with 2 carriers, including Excellus BlueCross BlueShield and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- CMS Medicare
Plan types Dr. Stark accepts, by number of carriers
- Medicare2
- EPO1
- HMO1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Timothy Daniel Stark'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Dr. Timothy Daniel Stark
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. Timothy Daniel Stark's NPI number?
Dr. Timothy Daniel Stark's NPI number is 1215145032. It was assigned on May 18, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy Daniel Stark?
Dr. Timothy Daniel Stark is an anesthesiologist in Greenbrae, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Timothy Daniel Stark practice?
Dr. Stark practices at 250 Bon Air Road, Greenbrae, CA 94904. Dr. Stark's primary practice is MarinHealth Medical Center in Greenbrae, California, part of Marin Healthcare District.
What is Dr. Timothy Daniel Stark's office phone number?
The practice phone on file for Dr. Stark is (415) 925-7900.
What is Dr. Timothy Daniel Stark's medical license number?
Dr. Stark holds California license A97662, one of the licenses on file in 4 states.
Which states has Dr. Timothy Daniel Stark been licensed in?
Dmand AI has state licenses on file for Dr. Stark in California (2006 to 2026), Hawaii (2023 to 2026), Florida (2007 to 2009) and Ohio (2003 to 2007).
Which hospitals is Dr. Timothy Daniel Stark affiliated with?
Dr. Stark practices at MarinHealth Medical Center in Greenbrae, California. Dr. Stark is also affiliated with Sonoma Valley Hospital.
What medical group is Dr. Timothy Daniel Stark part of?
Dr. Stark is linked to Anesthesiology Consultants of Marin.
Does Dr. Timothy Daniel Stark accept Medicare?
Yes. CMS data shows Dr. Stark billed Medicare for 120 services in 2024, and Dr. Stark accepts Medicare assignment.
How many Medicare patients does Dr. Timothy Daniel Stark see?
CMS counts 193 Medicare patients who saw Dr. Stark in 2024, with an average age of 76.
Show 7 more questionsShow fewer questions
Is Dr. Timothy Daniel Stark board certified?
Yes. Dr. Stark is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Timothy Daniel Stark bill to Medicare?
In 2024, Dr. Stark's most billed Medicare services were anesthesia (00142), anesthesia (00811) and anesthesia (00731).
Where did Dr. Timothy Daniel Stark go to medical school?
Dr. Stark graduated from WashU Medicine in 2003.
Has Dr. Timothy Daniel Stark received payments from drug or device companies?
CMS Open Payments shows $172 in general payments to Dr. Stark from 1 company from 2023 to 2023. The largest total came from Sumitomo Pharma America, Inc.
How long has Dr. Timothy Daniel Stark been practicing?
Dr. Stark graduated from medical school in 2003, 23 years ago.
Does Dr. Timothy Daniel Stark do research?
Dmand AI links 1 publication to Dr. Stark.
What insurance does Dr. Timothy Daniel Stark accept?
Dr. Stark is in network with 2 carriers, including Excellus BlueCross BlueShield and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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