Dr. David L. Griffith, MD

  • Walnut Creek, CA
  • Emergency medicine physician
NPI1093914442
Medicare services, 2024
402
Medicare patients, 2024
361
Part D claims, 2024
196
Publications
7
MIPS score, 2024
97
Practice address
1601 Ygnacio Valley Rd, Walnut Creek, CA 94598
Practice phone
Call (925) 939-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

John Muir Medical Center, Walnut Creek

Hospital · Walnut Creek, California

See all 5 affiliations

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Dr. David L. Griffith is an emergency medicine physician in Walnut Creek, California

Dr. Griffith practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health.

Dr. Griffith's NPI, 1093914442, was assigned on July 16, 2007. Dr. Griffith graduated from University Of Washington School Of Medicine in 2005. Dr. Griffith holds California license A116812.

NPI and contact details
NPI enumeration date
July 16, 2007
NPI status
Active
Practice phone
(925) 939-3000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
47
Medical school graduation
2005

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

Dr. David L. Griffith practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California

Dr. Griffith's primary practice is John Muir Medical Center, Walnut Creek, at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 in Contra Costa County. The practice phone is (925) 939-3000.

Source: Dmand AI Affiliation Data

Dr. David L. Griffith is affiliated with 3 sites of care and 2 medical groups

Dr. Griffith's primary practice is John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health. Dr. Griffith is also affiliated with Allegheny General Hospital. The medical group on file is Vituity. Dmand AI also links Dr. Griffith to 1 more hospital and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Griffith

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

Dmand AI tracks the EHR system at Dr. David L. Griffith's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Griffith practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
John Muir Medical Center, Walnut CreekAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. David L. Griffith is one of 7,423 emergency medicine physicians in California

Emergency medicine is Dr. Griffith's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Griffith is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Griffith's licenses on file in 3 states: California, Pennsylvania and Washington.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A116812 · 2011 to 2027 · taxonomy 207P00000X
  • Pennsylvania licenseLicense MD432203 · 2005 to 2012
  • Washington license2011 to 2012

Emergency medicine physicians near Dr. Griffith

Counts of emergency medicine physicians 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. David L. Griffith billed Medicare for 402 services in 2024

CMS data shows 402 Medicare services from Dr. Griffith across 4 procedure codes in 2024, for 361 Medicare patients. Medicare paid $54,092 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024402
Medicare patients361
Paid by Medicare$54,092
Procedure codes4

Dr. Griffith's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3462024: 3676%
Tests and treatments
2023: 462024: 3524%

Dr. Griffith compared with the California median for emergency medicine physicians, 2024

  • Dr. Griffith
  • California median
Medicare services
402vs 26552% above
Medicare patients
361vs 24349% above
Part D claims
63vs 62Close to median

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Griffith'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.

See all procedures by Dr. Griffith

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

Dr. David L. Griffith treated 361 Medicare patients in 2024, average age 76

CMS counts 361 Medicare patients who saw Dr. Griffith in 2024. The largest group is 75 to 84, with 125 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 2.11, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Griffith's median patient age at 51, with 56% women.

Medicare patients, 2024361
Average age76
Average risk score2.11
Also on Medicaid37%

Dr. Griffith's Medicare patients by age, 2024

Dr. Griffith's Medicare patients by sex, 2024

  • Women20557%
  • Men15643%

Chronic conditions among Dr. Griffith's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis51%
  4. Mood disorders40%
  5. Diabetes39%
  6. Anxiety37%
  7. Chronic kidney disease37%
  8. Depression35%

Share of Medicare patients with each condition. A patient can have several.

Dr. Griffith's patients across all payers

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

Patient panel by age, all payers

Median age 51

Patient panel by sex, all payers

  • Women56%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. David L. Griffith wrote 196 Medicare Part D claims in 2024

In 2024, Dr. Griffith wrote 196 Medicare Part D claims for 132 patients. 97% of them were for generic drugs. CMS names the drug for 63 of them, across 3 drugs with 11 or more claims each, at $270 in total drug cost. In 2023, CMS named 29 claims across 2 drugs.

Part D claims, 2024196
Drugs named by CMS3
Total drug cost$270
Part D patients132

Dr. Griffith's Part D claims by kind of drug, 2024

  • Generic190 claims97%
  • Brand-name and other6 claims3%

Dr. Griffith's most prescribed drugs by claims, 2024

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

Drug classes CMS tracks in Dr. Griffith's Part D claims, 2024

  • Opioids18%35 of 196 claims
  • Antibiotics29%56 of 196 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 292024: 63117%

Drugs named by CMS: 3 in 2024, 2 in 2023.

See all prescribing by Dr. Griffith

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

Dr. David L. Griffith scored 97 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Griffith for performance year 2024, reported as part of a group.

Dr. Griffith's MIPS scores, performance year 2024

  • 97of 100Final score
  • 90of 100Quality
  • 40of 100Improvement Activities
  • 78of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. David L. Griffith has 7 publications on record

Dmand AI links 7 papers to Dr. Griffith, published from 2018 to 2019. 2018 was the busiest year, with 5. The most frequent topics are Anti-Bacterial Agents, Boronic Acids and Meropenem. Dr. Griffith has published most often in Antimicrob Agents Chemother. Dr. Griffith's most frequent co-authors are Timothy R. Aksamit, MD and David E. Griffith, MD.

Papers7
Years published2018 to 2019

Topics Dr. Griffith writes about most

  • Anti-Bacterial Agents
  • Boronic Acids
  • Meropenem
  • Carbapenem-Resistant Enterobacteriaceae
  • Drug Combinations
  • Microbial Sensitivity Tests
  • Acinetobacter baumannii
  • Heterocyclic Compounds, 1-Ring

Dr. Griffith's most frequent co-authors

Recent publications by Dr. Griffith

See all 7 publications and co-authors

See who Dr. Griffith researches with

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

How network discovery works

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

Dr. David L. Griffith received $149 in industry payments in 2023

CMS Open Payments shows 5 general payments to Dr. Griffith from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $149.

Companies that paid Dr. Griffith the most, 2023 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Griffith

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. David L. Griffith graduated from University Of Washington School Of Medicine

Dr. Griffith graduated from University Of Washington School Of Medicine in 2005.

  1. Medical schoolUniversity Of Washington School Of Medicine
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. David L. Griffith'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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)
MIPS scores, telehealth, assignment and procedure percentilesClinician 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
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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. David L. Griffith

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. David L. Griffith's NPI number?

Dr. David L. Griffith's NPI number is 1093914442. It was assigned on July 16, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. David L. Griffith?

Dr. David L. Griffith is an emergency medicine physician in Walnut Creek, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. David L. Griffith practice?

Dr. Griffith practices at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598. Dr. Griffith's primary practice is John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health. Dmand AI also links Dr. Griffith to 1 hospital and 1 medical group.

What is Dr. David L. Griffith's office phone number?

The practice phone on file for Dr. Griffith is (925) 939-3000.

What is Dr. David L. Griffith's medical license number?

Dr. Griffith holds California license A116812, one of the licenses on file in 3 states.

Which states has Dr. David L. Griffith been licensed in?

Dmand AI has state licenses on file for Dr. Griffith in California (2011 to 2027), Pennsylvania (2005 to 2012) and Washington (2011 to 2012).

Which hospitals is Dr. David L. Griffith affiliated with?

Dr. Griffith practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California. Dr. Griffith is also affiliated with Allegheny General Hospital. Dmand AI links Dr. Griffith to 1 more hospital.

What medical group is Dr. David L. Griffith part of?

Dr. Griffith is linked to Vituity. Dmand AI links Dr. Griffith to 1 more medical group.

Does Dr. David L. Griffith accept Medicare?

Yes. CMS data shows Dr. Griffith billed Medicare for 402 services in 2024.

What is Dr. David L. Griffith's MIPS score?

Dr. Griffith's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. David L. Griffith see?

CMS counts 361 Medicare patients who saw Dr. Griffith in 2024, with an average age of 76.

Is Dr. David L. Griffith board certified?

Yes. Dr. Griffith is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Dr. David L. Griffith bill to Medicare?

In 2024, Dr. Griffith's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).

Where did Dr. David L. Griffith go to medical school?

Dr. Griffith graduated from University Of Washington School Of Medicine in 2005.

What drugs does Dr. David L. Griffith prescribe most?

In 2024 Medicare Part D data, Dr. Griffith's most prescribed drugs by claims were Cephalexin, Oxycodone HCl and Ibuprofen.

Has Dr. David L. Griffith received payments from drug or device companies?

CMS Open Payments shows $149 in general payments to Dr. Griffith from 1 company from 2023 to 2023. The largest total came from Inari Medical, Inc.

How long has Dr. David L. Griffith been practicing?

Dr. Griffith graduated from medical school in 2005, 21 years ago.

Does Dr. David L. Griffith do research?

Dmand AI links 7 publications to Dr. Griffith, published from 2018 to 2019.

Who does Dr. David L. Griffith publish with?

Dr. Griffith's most frequent co-authors are Timothy R. Aksamit, MD (1 shared paper) and David E. Griffith, MD (1 shared paper).

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