Dr. Melissa R. Keller, MD, PhD

  • Sacramento, CA
  • Vascular surgeon
NPI1679923841PAC ID4284035387
Medicare services, 2024
1,672
Medicare patients, 2024
1,062
Part D claims, 2024
141
Publications
9
Clinical trials
1
Practice address
2315 Stockton Boulevard, Sacramento, CA 95817
Practice phone
Call (916) 734-2011
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UC Davis Medical Center

Hospital · Sacramento, California

See all 6 affiliations

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Dr. Melissa R. Keller is a vascular surgeon in Sacramento, California

Dr. Keller practices at UC Davis Medical Center in Sacramento, California, part of University of California Health.

Dr. Keller's NPI, 1679923841, was assigned on June 17, 2016. Dr. Keller graduated from Tulane School of Medicine in 2016. Dr. Keller holds California license A191563.

NPI and contact details
Medicare PAC ID
4284035387
NPI enumeration date
June 17, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(916) 734-2011
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Female
Estimated age
36
Medical school graduation
2016

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Melissa R. Keller practices at UC Davis Medical Center in Sacramento, California

Dr. Keller's primary practice is UC Davis Medical Center, at 2315 Stockton Boulevard, Sacramento, CA 95817 in Sacramento County. The practice phone is (916) 734-2011.

Source: Dmand AI Affiliation Data

Dr. Melissa R. Keller is affiliated with 5 sites of care and 1 medical group

Dr. Keller's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Dr. Keller is also affiliated with Sutter Roseville Medical Center. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Keller to 2 more hospitals and 1 group practice or clinic, each named with a free account.

See all 6 affiliations for Dr. Keller

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

Dmand AI tracks the EHR system at Dr. Melissa R. Keller's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Keller practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UC Davis Medical CenterAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Melissa R. Keller is one of 532 vascular surgeons in California

Vascular surgery is Dr. Keller's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dmand AI has Dr. Keller's licenses on file in 4 states: California, Texas, North Carolina and Michigan.

Specialties and state licenses

  • Vascular surgery, CaliforniaPrimaryLicense A191563 · 2023 to 2027 · taxonomy 2086S0129X
  • Texas licenseLicense U1310 · 2022 to 2026
  • North Carolina license2021 to 2022
  • Michigan license2016 to 2021

Clinical focus

Dmand AI lists leg revascularization among the conditions Dr. Keller treats.

Vascular surgeons near Dr. Keller

Counts of vascular surgeons 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. Melissa R. Keller billed Medicare for 1,672 services in 2024

CMS data shows 1,672 Medicare services from Dr. Keller across 27 procedure codes in 2024, for 1,062 Medicare patients. Medicare paid $74,546 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20241,672
Medicare patients1,062
Paid by Medicare$74,546
Procedure codes27

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

  • 2023
  • 2024
Tests and treatments
2023: 1012024: 1,102991%
Office and hospital visits
2023: 02024: 385
Surgery
2023: 02024: 69
Imaging
2023: 02024: 66
Other services
2023: 02024: 50

Dr. Keller compared with the California median for vascular surgeons, 2024

  • Dr. Keller
  • California median
Medicare services
1,672vs 6092.7 times
Medicare patients
1,062vs 2723.9 times
Part D claims
115vs 552.1 times

Medians across 499 vascular surgeons in California with Dmand AI profiles that report each measure.

Dr. Keller'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. Keller

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

Dr. Melissa R. Keller treated 1,062 Medicare patients in 2024, average age 74

CMS counts 1,062 Medicare patients who saw Dr. Keller in 2024. The largest group is 65 to 74, with 423 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 35% are also on Medicaid. Their average risk score is 2.26, 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. Keller's median patient age at 67, with 48% women.

Medicare patients, 20241,062
Average age74
Average risk score2.26
Also on Medicaid35%

Dr. Keller's Medicare patients by age, 2024

Dr. Keller's Medicare patients by sex, 2024

  • Women51849%
  • Men54451%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis51%
  4. Ischemic heart disease45%
  5. Diabetes41%
  6. Chronic kidney disease40%
  7. Heart failure34%
  8. Mood disorders28%

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

Dr. Keller's patients across all payers

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

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women48%
  • Men52%

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

Dr. Melissa R. Keller wrote 141 Medicare Part D claims in 2024

In 2024, Dr. Keller wrote 141 Medicare Part D claims for 45 patients. 80% of them were for generic drugs. CMS names the drug for 115 of them, across 4 drugs with 11 or more claims each, at $12,454 in total drug cost. In 2019, CMS named 17 claims across 1 drug.

Part D claims, 2024141
Drugs named by CMS4
Total drug cost$12,454
Part D patients45

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

  • Generic113 claims80%
  • Brand-name28 claims20%

Dr. Keller'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.

Part D claims for drugs CMS names, 2019 to 2024

  • 2019
  • 2024
Claims for drugs CMS names
2019: 172024: 115576%

Drugs named by CMS: 4 in 2024, 1 in 2019.

See all prescribing by Dr. Keller

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. Melissa R. Keller scored 83 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Keller for performance year 2024, reported as part of a group. Dr. Keller accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Keller as offering telehealth. CMS counts 31 procedures of leg revascularization (restoring blood flow) by Dr. Keller, more than 89% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Keller's MIPS scores, performance year 2024

  • 83of 100Final score
  • 64.8of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 69of 100Cost

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

Where Dr. Keller ranks in Medicare procedure volume

Leg revascularization (restoring blood flow)
89th percentile31 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Melissa R. Keller has 9 publications on record

Dmand AI links 9 papers to Dr. Keller, published from 2009 to 2024. 2011 was the busiest year, with 2. The most frequent topics are Graft Rejection, Interleukin-17 and Mice, Inbred C57BL. Dr. Keller has published most often in J Vasc Surg Cases Innov Tech. Dr. Keller's most frequent co-authors are Melissa Louise Kirkwood, MD, Carlos Hernando Timaran, MD and Gerardo Gonzalez-Guardiola, MD.

Papers9
Years published2009 to 2024

Dr. Keller's papers by year, 2009 to 2024

Topics Dr. Keller writes about most

  • Graft Rejection
  • Interleukin-17
  • Mice, Inbred C57BL
  • Autoantigens
  • Cattle
  • Collagen Type V
  • Disease Models, Animal
  • HLA-DRB1 Chains

Dr. Keller's most frequent co-authors

Recent publications by Dr. Keller

See all 9 publications and co-authors

See who Dr. Keller researches with

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

How network discovery works

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

Dr. Melissa R. Keller has worked on 1 clinical trial

Dmand AI links Dr. Keller to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Aortic Aneurysm, Thoracoabdominal and Aortic Aneurysm, Abdominal.

Conditions in Dr. Keller's trials

  • Aortic Aneurysm, Thoracoabdominal
  • Aortic Aneurysm, Abdominal

Recent clinical trials with Dr. Keller

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Melissa R. Keller received $16,088 in industry payments from 2016 to 2025

CMS Open Payments shows 128 general payments to Dr. Keller from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 56% of the total. W. L. Gore & Associates, Inc. paid the most, $4,548.

General payments to Dr. Keller by program year, 2016 to 2025

General payments to Dr. Keller by kind, 2016 to 2025

$16.1Kin total
  • Food and beverage$8,95756%
  • Travel and lodging$6,40740%
  • Consulting fees$4503%
  • Education$2742%

Companies that paid Dr. Keller the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Keller

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

Dr. Melissa R. Keller graduated from Tulane School of Medicine

Dr. Keller graduated from Tulane School of Medicine in 2016.

  1. Medical schoolTulane School of Medicine

Source: Dmand AI Professional Profile Data

Dr. Melissa R. Keller accepts plans from 10 insurance carriers

Dr. Keller is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +2 more carriersWith a free account

Plan types Dr. Keller accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO2
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Melissa R. Keller'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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Melissa R. Keller

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. Melissa R. Keller's NPI number?

Dr. Melissa R. Keller's NPI number is 1679923841. It was assigned on June 17, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Melissa R. Keller?

Dr. Melissa R. Keller is a vascular surgeon in Sacramento, California. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).

Where does Dr. Melissa R. Keller practice?

Dr. Keller practices at 2315 Stockton Boulevard, Sacramento, CA 95817. Dr. Keller's primary practice is UC Davis Medical Center in Sacramento, California, part of University of California Health. Dmand AI also links Dr. Keller to 2 hospitals and 1 group practice or clinic.

What is Dr. Melissa R. Keller's office phone number?

The practice phone on file for Dr. Keller is (916) 734-2011.

What is Dr. Melissa R. Keller's medical license number?

Dr. Keller holds California license A191563, one of the licenses on file in 4 states.

Which states has Dr. Melissa R. Keller been licensed in?

Dmand AI has state licenses on file for Dr. Keller in California (2023 to 2027), Texas (2022 to 2026), North Carolina (2021 to 2022) and Michigan (2016 to 2021).

Which hospitals is Dr. Melissa R. Keller affiliated with?

Dr. Keller practices at UC Davis Medical Center in Sacramento, California. Dr. Keller is also affiliated with Sutter Roseville Medical Center. Dmand AI links Dr. Keller to 2 more hospitals.

What medical group is Dr. Melissa R. Keller part of?

Dr. Keller is linked to UC Davis Medical Group.

Does Dr. Melissa R. Keller accept Medicare?

Yes. CMS data shows Dr. Keller billed Medicare for 1,672 services in 2024, and Dr. Keller accepts Medicare assignment.

Does Dr. Melissa R. Keller offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Keller as offering telehealth services.

Show 10 more questionsShow fewer questions

What is Dr. Melissa R. Keller's MIPS score?

Dr. Keller's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.

How many Medicare patients does Dr. Melissa R. Keller see?

CMS counts 1,062 Medicare patients who saw Dr. Keller in 2024, with an average age of 74.

What services does Dr. Melissa R. Keller bill to Medicare?

In 2024, Dr. Keller's most billed Medicare services were blood vessel study (93922), blood vessel study (93970) and blood vessel study (93971).

Where did Dr. Melissa R. Keller go to medical school?

Dr. Keller graduated from Tulane School of Medicine in 2016.

What drugs does Dr. Melissa R. Keller prescribe most?

In 2024 Medicare Part D data, Dr. Keller's most prescribed drugs by claims were Clopidogrel, Atorvastatin Calcium and Rosuvastatin Calcium.

Has Dr. Melissa R. Keller received payments from drug or device companies?

CMS Open Payments shows $16,088 in general payments to Dr. Keller from 26 companies from 2016 to 2025. The largest total came from W. L. Gore & Associates, Inc.

How long has Dr. Melissa R. Keller been practicing?

Dr. Keller graduated from medical school in 2016, 10 years ago.

Does Dr. Melissa R. Keller do research?

Dmand AI links 9 publications to Dr. Keller, published from 2009 to 2024. Dr. Keller has worked on 1 clinical trial.

Who does Dr. Melissa R. Keller publish with?

Dr. Keller's most frequent co-authors are Melissa Louise Kirkwood, MD (3 shared papers), Carlos Hernando Timaran, MD (3 shared papers) and Gerardo Gonzalez-Guardiola, MD (2 shared papers).

What insurance does Dr. Melissa R. Keller accept?

Dr. Keller is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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