N Engl J Med
Analgesia, EpiduralAnalgesia, ObstetricalAnalgesics, Opioid
Dr. Nathaniel Diaz, MD
NPI1811923857
- Medicare services, 2018
- 222
- Publications
- 1
- Industry payments
- $180
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 5400 Balboa Blvd, Encino, CA 91316-1502
- Practice phone
- Call (818) 784-8975
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Diaz Anesthesia Services
Surgical practice · Encino, California
Find Dr. Diaz's professional email, personal email and mobile number
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Dr. Nathaniel Diaz is an anesthesiologist in Culver City, California
Dr. Diaz practices at Diaz Anesthesia Services in Encino, California.
Dr. Diaz's NPI, 1811923857, was assigned on June 23, 2006. Dr. Diaz graduated from University of Illinois College of Medicine - Chicago in 1998. Dr. Diaz's California license number on file is A89528.
NPI and contact details
- NPI
- 1811923857NPI Registry (opens in a new tab)
- NPI enumeration date
- June 23, 2006
- NPI status
- Active
- Practice phone
- (818) 784-8975
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathaniel Diaz practices in Encino and Culver City
Dr. Diaz's primary practice is Diaz Anesthesia Services, at 5400 Balboa Blvd, Encino, CA 91316-1502. The practice phone is (818) 784-8975. The NPI Registry lists Dr. Diaz's practice address as 3828 Delmas Ter, Culver City, CA 90232-2713.
- Diaz Anesthesia ServicesPrimary5400 Balboa Blvd, Encino, CA 91316-1502Phone(818) 784-8975
- NPI Registry address3828 Delmas Ter, Culver City, CA 90232-2713Phone(310) 836-7000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Nathaniel Diaz is affiliated with 1 site of care and 1 medical group
Dr. Diaz's primary practice is Diaz Anesthesia Services in Encino, California. Dmand AI also links Dr. Diaz to 1 medical group, named with a free account.
Diaz Anesthesia ServicesPrimary
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Nathaniel Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Diaz Anesthesia Services | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Nathaniel Diaz is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Diaz's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Illinois license
Anesthesiologists near Dr. Diaz
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
6,593anesthesiologists in California
2anesthesiologists in Culver City
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nathaniel Diaz billed Medicare for 222 services in 2018
CMS data shows 222 Medicare services from Dr. Diaz across 7 procedure codes in 2018. Medicare paid $39,798 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2018222
Paid by Medicare$39,798
Procedure codes7
Dr. Diaz's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Anesthesia
- 2017: 2212018: 222No change
Dr. Diaz compared with the California median for anesthesiologists, 2018
- Dr. Diaz
- California median
- Medicare services
- 222vs 723.1 times
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Diaz's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Diaz and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
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Dr. Nathaniel Diaz has 1 publication on record
Dmand AI links 1 paper to Dr. Diaz. Dr. Diaz's most frequent co-authors are Alan M. Peaceman, MD and Cynthia Anne Wong, MD.
Papers1
Dr. Diaz's most frequent co-authors
Recent publications by Dr. Diaz
See who Dr. Diaz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Diaz 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. Nathaniel Diaz received $180 in industry payments from 2022 to 2025
CMS Open Payments shows 4 general payments to Dr. Diaz from 2 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 77% of the total. Boston Scientific Corporation paid the most, $139.
General payments to Dr. Diaz by program year, 2022 to 2025
General payments to Dr. Diaz by kind, 2022 to 2025
$180in total
- Food and beverage$13977%
- Debt forgiveness$4123%
Companies that paid Dr. Diaz the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nathaniel Diaz graduated from University of Illinois College of Medicine - Chicago
Dr. Diaz graduated from University of Illinois College of Medicine - Chicago in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nathaniel Diaz'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 |
| 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 |
| 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. Nathaniel Diaz
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. Nathaniel Diaz's NPI number?
Dr. Nathaniel Diaz's NPI number is 1811923857. It was assigned on June 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathaniel Diaz?
Dr. Nathaniel Diaz is an anesthesiologist in Culver City, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Nathaniel Diaz practice?
Dr. Diaz practices at 5400 Balboa Blvd, Encino, CA 91316-1502. Dr. Diaz also practices at 3828 Delmas Ter, Culver City, CA 90232-2713. Dr. Diaz's primary practice is Diaz Anesthesia Services in Encino, California. Dmand AI also links Dr. Diaz to 1 medical group.
What is Dr. Nathaniel Diaz's office phone number?
The practice phone on file for Dr. Diaz is (818) 784-8975.
What is Dr. Nathaniel Diaz's medical license number?
Dr. Diaz's California license number on file is A89528, one of the licenses on file in 2 states.
Which states has Dr. Nathaniel Diaz been licensed in?
Dmand AI has state licenses on file for Dr. Diaz in California (2004 to 2024) and Illinois (1998 to 2008).
Does Dr. Nathaniel Diaz accept Medicare?
Yes. CMS data shows Dr. Diaz billed Medicare for 222 services in 2018.
What services does Dr. Nathaniel Diaz bill to Medicare?
In 2018, Dr. Diaz's most billed Medicare services were anesthesia (00142), anesthesia (01992) and anesthesia (00103).
Where did Dr. Nathaniel Diaz go to medical school?
Dr. Diaz graduated from University of Illinois College of Medicine - Chicago in 1998.
Has Dr. Nathaniel Diaz received payments from drug or device companies?
CMS Open Payments shows $180 in general payments to Dr. Diaz from 2 companies from 2022 to 2025. The largest total came from Boston Scientific Corporation.
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How long has Dr. Nathaniel Diaz been practicing?
Dr. Diaz graduated from medical school in 1998, 28 years ago.
Does Dr. Nathaniel Diaz do research?
Dmand AI links 1 publication to Dr. Diaz.
Who does Dr. Nathaniel Diaz publish with?
Dr. Diaz's most frequent co-authors are Alan M. Peaceman, MD (1 shared paper) and Cynthia Anne Wong, MD (1 shared paper).
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