Plast Reconstr Surg
ClopidogrelCoronary ThrombosisHead and Neck Neoplasms
Dr. Mark Irwin Singer, MD
NPI1841249109
- Medicare services, 2022
- 123
- Part D claims, 2024
- 78
- Publications
- 3
- Hospital affiliations
- 2
- Industry payments
- $2,578
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Mark Irwin Singer is an otolaryngologist in Stanford, California
Dr. Singer practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Singer's NPI, 1841249109, was assigned on May 6, 2006. Dr. Singer holds California license G70069.
NPI and contact details
- NPI
- 1841249109NPI Registry (opens in a new tab)
- NPI enumeration date
- May 6, 2006
- NPI status
- Active
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 82
- Medical school graduation
- 1970
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mark Irwin Singer practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Singer'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.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Mark Irwin Singer is affiliated with 2 sites of care
Dr. Singer's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Singer to 1 hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Irwin Singer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Singer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Irwin Singer is one of 1,107 otolaryngologists in California
Otolaryngology is Dr. Singer's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Singer is licensed in California.
Specialties and state licenses
- Otolaryngology, CaliforniaPrimary
Otolaryngologists near Dr. Singer
Counts of otolaryngologists with a Dmand AI profile, by place and practice. Each opens the list.
1,107otolaryngologists in California44otolaryngologists in Stanford40otolaryngologists at Stanford Hospital at 300 Pasteur Drive
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Irwin Singer billed Medicare for 123 services in 2022
CMS data shows 123 Medicare services from Dr. Singer across 3 procedure codes in 2022. Medicare paid $10,096 for them. Every service was in an office.
Medicare services, 2022123
Paid by Medicare$10,096
Procedure codes3
Dr. Singer's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1152022: 1095%
- Tests and treatments
- 2021: 02022: 14
- Surgery
- 2021: 202022: 0100%
Dr. Singer compared with the California median for otolaryngologists, 2022
- Dr. Singer
- California median
- Medicare services
- 123vs 66682% below
- Part D claims
- 15vs 11887% below
Medians across 1,045 otolaryngologists in California with Dmand AI profiles that report each measure.
Dr. Singer'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.
Need commercial claims for Dr. Singer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Singer and other otolaryngologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Irwin Singer's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Singer's median patient age at 68, with 48% women.
Dr. Singer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women48%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Mark Irwin Singer wrote 78 Medicare Part D claims in 2024
In 2024, Dr. Singer wrote 78 Medicare Part D claims for 13 patients. 77% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $223 in total drug cost. In 2020, CMS named 13 claims across 1 drug.
Part D claims, 202478
Drugs named by CMS1
Total drug cost$223
Part D patients13
Dr. Singer's Part D claims by kind of drug, 2024
- Generic60 claims77%
- Brand-name18 claims23%
Dr. Singer's most prescribed drugs by claims, 2022
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 2022
- 2020
- 2022
- Claims for drugs CMS names
- 2020: 132022: 1515%
Drugs named by CMS: 1 in 2022, 1 in 2020.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Mark Irwin Singer has 3 publications on record
Dmand AI links 3 papers to Dr. Singer in 2018. Dr. Singer has published most often in Plast Reconstr Surg. Dr. Singer's most frequent co-authors are Brian Michael Parrett, MD, Rudolf Fabian Buntic, MD and Wojciech Henryk Przylecki, MD.
Papers3
Dr. Singer's most frequent co-authors
- Brian Michael Parrett, MD2 shared papers
- Rudolf Fabian Buntic, MD1 shared paper
- Wojciech Henryk Przylecki, MD1 shared paper
Recent publications by Dr. Singer
ArteriesFaceMouth Neoplasms
See who Dr. Singer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Singer works with, so you can find a warm path to the right otolaryngologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Irwin Singer received $2,578 in industry payments from 2016 to 2020
CMS Open Payments shows 21 general payments to Dr. Singer from 6 drug and device companies from 2016 to 2020. Speaker and faculty fees make up the largest share, 78% of the total. AxoGen paid the most, $2,147.
General payments to Dr. Singer by program year, 2016 to 2020
General payments to Dr. Singer by kind, 2016 to 2020
$2.6Kin total
- Speaker and faculty fees$2,00078%
- Food and beverage$56322%
- Gifts$151%
Companies that paid Dr. Singer the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Irwin Singer'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (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) |
| 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. Mark Irwin Singer
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. Mark Irwin Singer's NPI number?
Dr. Mark Irwin Singer's NPI number is 1841249109. It was assigned on May 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Irwin Singer?
Dr. Mark Irwin Singer is an otolaryngologist in Stanford, California. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Mark Irwin Singer practice?
Dr. Singer practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Singer's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Singer to 1 hospital.
What is Dr. Mark Irwin Singer's office phone number?
The practice phone on file for Dr. Singer is (650) 723-4000.
What is Dr. Mark Irwin Singer's medical license number?
Dr. Singer holds California license G70069.
Which hospitals is Dr. Mark Irwin Singer affiliated with?
Dr. Singer practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Singer to 1 more hospital.
Does Dr. Mark Irwin Singer accept Medicare?
Yes. CMS data shows Dr. Singer billed Medicare for 123 services in 2022.
What services does Dr. Mark Irwin Singer bill to Medicare?
In 2022, Dr. Singer's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99204) and ear, nose and throat service (92504).
What drugs does Dr. Mark Irwin Singer prescribe most?
In 2022 Medicare Part D data, Dr. Singer's most prescribed drugs by claims were Levothyroxine Sodium.
Has Dr. Mark Irwin Singer received payments from drug or device companies?
CMS Open Payments shows $2,578 in general payments to Dr. Singer from 6 companies from 2016 to 2020. The largest total came from AxoGen.
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How long has Dr. Mark Irwin Singer been practicing?
Dr. Singer graduated from medical school in 1970, 56 years ago.
Does Dr. Mark Irwin Singer do research?
Dmand AI links 3 publications to Dr. Singer.
Who does Dr. Mark Irwin Singer publish with?
Dr. Singer's most frequent co-authors are Brian Michael Parrett, MD (2 shared papers), Rudolf Fabian Buntic, MD (1 shared paper) and Wojciech Henryk Przylecki, MD (1 shared paper).
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