Updated October 2026

Anesthesiologists in Walnut Creek, CA

Anesthesiology
Walnut Creek, California

Anesthesiologists: 107
Linked to a hospital or group: 84
Hospitals with an anesthesiologist: 24
Medical groups with an anesthesiologist: 33
Practice at a hospital: 77

There are 107 anesthesiologists in Walnut Creek. John Muir Health has the most, 48, and John Muir Medical Center, Walnut Creek has the most affiliated anesthesiologists, 47. 21% finished medical school 30 or more years ago.

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Walnut Creek anesthesiologists, listed A to Z by last name

Each anesthesiologist on the list has anesthesiology as their primary specialty and a Walnut Creek practice address. The list shows the NPI, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.

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Walnut Creek anesthesiologists, A to Z
Anesthesiologist	Hospitals	Medical groups	Email and phone
Shubham AgrawalNPI 1326675307	4 hospitals	4 groups	Contacts
Jorge Aguilar, MDNPI 1275777641	3 hospitals	2 groups	Contacts
Mir E. Ali, MDNPI 1417912726	1 hospital	4 groups	Contacts
Julia Ankunding, MDNPI 1265440770	-	1 group	Contacts
Gregory James Bellig, MDNPI 1558354993	2 hospitals	7 groups	Contacts
Ralph O. Berten, MDNPI 1235217316	1 hospital	1 group	Contacts
Upasna Bhuria, MDNPI 1700020575	3 hospitals	4 groups	Contacts
Alexei Birger, MDNPI 1962691576	3 hospitals	3 groups	Contacts
Matthew Richard Bonzani, MDNPI 1750342465	-	2 groups	Contacts
Arne John Brock-Utne, MDNPI 1326087750	3 hospitals	4 groups	Contacts
Thomas A. Burns, MDNPI 1700964863	1 hospital	1 group	Contacts
Judy Chang, MDNPI 1740508720	2 hospitals	3 groups	Contacts
Steven Christopher Chang, MDNPI 1427090414	2 hospitals	1 group	Contacts
Melvina M. Cheung, MDNPI 1265750376	3 hospitals	7 groups	Contacts
Angela Chiang, MDNPI 1932287026	1 hospital	1 group	Contacts
Parminder S. Chopra, MDNPI 1619055787	1 hospital	1 group	Contacts
Mary V. Clemency, MDNPI 1376621441	-	-	Contacts
Roger Douglas Cornwall, MDNPI 1144266404	-	-	Contacts
Gerard Duc Chinh Dang, MDNPI 1043389596	1 hospital	7 groups	Contacts
Romerson Del Rosario Dimla, MDNPI 1962862052	3 hospitals	5 groups	Contacts
John F. Donovan, MDNPI 1871509307	3 hospitals	4 groups	Contacts
Allison K. Duffy, MDNPI 1548484835	1 hospital	2 groups	Contacts
Adam Joseph Dziuba, MDNPI 1215391164	4 hospitals	4 groups	Contacts
Christian Alfred Eirich, MDNPI 1518915883	1 hospital	2 groups	Contacts
Melissa Louise Ennen, MDNPI 1316134885	-	4 groups	Contacts
Oscar A. Fernandez, MDNPI 1235166430	1 hospital	4 groups	Contacts
George Gallos, MDNPI 1750554861	1 hospital	1 group	Contacts
Robert L. Gay III, MDNPI 1427057298	3 hospitals	3 groups	Contacts
Michelle Luz Gerrard, MDNPI 1588748131	3 hospitals	3 groups	Contacts
Lawrence David Gluckstein, MDNPI 1255377495	-	1 group	Contacts
Ryan Bradley Green, MD, PhDNPI 1730375791	3 hospitals	2 groups	Contacts
Brandy Nicole Greene, MDNPI 1043453376	-	3 groups	Contacts
Norman Michael Aleks Gunn, MDNPI 1932287711	1 hospital	1 group	Contacts
Oanh Hoang Ha, MDNPI 1881783165	1 hospital	1 group	Contacts
Michael Gerald Hernandez, MDNPI 1790732527	-	-	Contacts
Sarah See Yeon Joo, MDNPI 1275923492	2 hospitals	1 group	Contacts
Ghulam S. Joyo, MDNPI 1508850843	-	4 groups	Contacts
Luke Karl, MDNPI 1407436058	4 hospitals	2 groups	Contacts
Igor KirzhnerNPI 1861771222	2 hospitals	5 groups	Contacts
Karin L. Klika, MDNPI 1124038138	1 hospital	4 groups	Contacts
Kerry Apostolo Klinger, MDNPI 1689945230	1 hospital	2 groups	Contacts
Evan C. KungNPI 1760877146	3 hospitals	2 groups	Contacts
Garrick C. Lau, MD, PhDNPI 1922172535	1 hospital	1 group	Contacts
Robert Glenn Laverne, MDNPI 1154365666	1 hospital	1 group	Contacts
Hansen Huan Le, DONPI 1720094501	-	1 group	Contacts
Christina Hyelim LeeNPI 1639478803	1 hospital	4 groups	Contacts
David Lee Jr., MDNPI 1265012140	4 hospitals	2 groups	Contacts
Steven Y. Lee, MDNPI 1780668632	-	1 group	Contacts
Wayne Karman Lee, MDNPI 1740529593	3 hospitals	3 groups	Contacts
Haywon Lieh, MDNPI 1013952308	1 hospital	1 group	Contacts

Showing 1 to 50 of 91 Walnut Creek anesthesiologists

The list shows the 91 anesthesiologists with a public profile. The other 16 are counted in the total and searchable with a free account.

Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data

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Dmand AI has the EHR for 105 of 107 Walnut Creek anesthesiologists, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.

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John Muir Health has the most anesthesiologists in Walnut Creek, with 48

CEP America is second with 48, and G2 Anesthesia third with 25. Counts are anesthesiologists with a California address linked to each group.

Medical groups with the most anesthesiologists in Walnut Creek
#	Medical group	Parent organization	Anesthesiologists
1	John Muir HealthWalnut Creek	Parent on file	48
2	CEP AmericaEmeryville	Parent on file	48
3	G2 AnesthesiaLos Gatos	-	25
4	The Permanente Medical Group, Inc.Pleasanton	Parent on file	20
5	East Bay Anesthesiology Medical GroupOakland	Parent on file	7
6	Pontine Anesthesia Consultants (PAC)San Ramon	-	5
7	UCSF Department of Anesthesia and Perioperative CareSan Francisco	Parent on file	4
8	UCSF Medical GroupSan Francisco	Parent on file	4
9	UCSF PediatricsSan Francisco	Parent on file	4
10	UCSF Department of Radiology & Biomedical ImagingSan Francisco	Parent on file	3

Top 10 of 33 Walnut Creek medical groups with an anesthesiologist

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

John Muir Medical Center, Walnut Creek has the most affiliated anesthesiologists in Walnut Creek, with 47

Concord Medical Center is second with 34, and Walnut Creek Medical Center third with 16. Walnut Creek anesthesiologists are affiliated with 24 hospitals in all.

Hospitals with the most anesthesiologists in Walnut Creek
#	Hospital	Health system	Anesthesiologists
1	John Muir Medical Center, Walnut CreekWalnut Creek	John Muir Health	47
2	Concord Medical CenterConcord	John Muir Health	34
3	Walnut Creek Medical CenterWalnut Creek	Kaiser Permanente	16
4	Alta Bates Summit Medical CenterOakland	Sutter Health	5
5	Alta Bates Summit Medical Center \| Alta Bates CampusBerkeley	Sutter Health	3
6	Sutter Eden Medical CenterCastro Valley	Sutter Health	3
7	Washington HealthFremont	Washington Health	2
8	Hillcrest Medical CenterSan Diego	University of California Health	1
9	Santa Clara Valley Medical CenterSan Jose	County of Santa Clara, CA	1
10	Sutter Solano Medical CenterVallejo	Sutter Health	1

Top 10 of 24 Walnut Creek hospitals with an affiliated anesthesiologist

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Source: Dmand AI Affiliation Data

Most Walnut Creek anesthesiologists practice at a hospital: 77 of the 84 with a mapped site

35 also practice at a medical group site, and 12 at an ambulatory surgery center. An anesthesiologist can practice at several kinds of site, so the shares overlap.

Walnut Creek anesthesiologists by site of care

Hospitals7792%
Medical group practices3542%
Ambulatory surgery centers1214%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

21% of Walnut Creek anesthesiologists finished medical school 30 or more years ago

17 of the 81 Walnut Creek anesthesiologists with a graduation year on file. 11 graduated in the last 10 years.

Physicians by years since medical school

Under 10 years ago1114%
10 to 19 years ago2025%
20 to 29 years ago3341%
30 to 39 years ago1012%
40 or more years ago79%

Source: Dmand AI Professional Profile Data

Every Walnut Creek anesthesiologist profile shows current hospitals and groups, Medicare activity and NPI details

Primary practiceThe main place they practice, with its type and cityOn every profile
Every site of careEach hospital, clinic and group where they practice nowWith a free account
EmployerThe organization they work for, when one is on fileWith a free account
Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
EHR in useThe EHR at each site where they practiceWith a free account
Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account

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Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data

Sources for the Walnut Creek anesthesiologist directory

Sources for the data on this page
Data on this page	Source
HCPs, types and specialties	NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groups	Dmand AI Affiliation Data
Medical school graduation year	Dmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracy Remove my information

Anesthesiologists are HCPs whose primary specialty is anesthesiology (taxonomy code 207L00000X), with an active NPI and a Walnut Creek practice address.

FAQ

Frequently asked questions about anesthesiologists in Walnut Creek

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

How many anesthesiologists are in Walnut Creek?

107 anesthesiologists have an active NPI, a Walnut Creek practice address and anesthesiology (taxonomy code 207L00000X) as their primary specialty. 84 of them are linked to a hospital or medical group.

Which Walnut Creek medical groups have the most anesthesiologists?

John Muir Health, with 48, followed by CEP America with 48 and G2 Anesthesia with 25.

Which Walnut Creek hospitals have the most anesthesiologists?

John Muir Medical Center, Walnut Creek, with 47 affiliated anesthesiologists, followed by Concord Medical Center with 34 and Walnut Creek Medical Center with 16.

What share of Walnut Creek anesthesiologists practice at a hospital?

77 of the 84 Walnut Creek anesthesiologists with a mapped site of care, or 92%, have a current hospital affiliation.

What is the taxonomy code for anesthesiology?

207L00000X is the NPPES taxonomy code for anesthesiology. Sub-specialties with their own code are counted on their own lists.

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