Charles Hammond

  • San Diego, CA
  • Hospitalist
NPI1033641816PAC ID6002182912
Medicare services, 2024
631
Medicare patients, 2024
196
Part D claims, 2024
168
Publications
3
MIPS score, 2024
91
Practice address
200 W Arbor Dr, San Diego, CA 92103
Practice phone
Call (619) 543-6222
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

See all 3 affiliations

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Charles Hammond is a hospitalist in San Diego, California

Charles Hammond practices at UCSD Hillcrest Medical Center in San Diego, California.

Charles Hammond's NPI, 1033641816, was assigned on March 30, 2017. Charles Hammond graduated from Wayne State University School Of Medicine in 2017. Charles Hammond holds California license A169655.

NPI and contact details
Medicare PAC ID
6002182912
NPI enumeration date
March 30, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(619) 543-6222
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
35
Medical school graduation
2017

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

Charles Hammond practices at UCSD Hillcrest Medical Center in San Diego, California

Charles Hammond's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.

  • UCSD Hillcrest Medical Center
    200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222

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

Charles Hammond is affiliated with 2 sites of care and 1 medical group

Charles Hammond's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Charles Hammond is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health.

See all 3 affiliations for Charles Hammond

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Charles Hammond's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Charles Hammond practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSD Hillcrest Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Charles Hammond is one of 3,186 hospitalists in California

Hospitalist is Charles Hammond's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Charles Hammond is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Charles Hammond's licenses on file in 2 states: California and Michigan.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A169655 · 2020 to 2026 · taxonomy 208M00000X
  • Michigan license2017 to 2019

Clinical focus

Dmand AI lists acute respiratory failure, bone infection, gastrointestinal bleeding, lung disease: COPD, asthma or bronchitis, pancreatitis, pneumonia and respiratory infection, pulmonary embolism and sepsis among the conditions Charles Hammond treats.

Hospitalists near Charles Hammond

Counts of hospitalists 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

Charles Hammond billed Medicare for 631 services in 2024

CMS data shows 631 Medicare services from Charles Hammond across 5 procedure codes in 2024, for 196 Medicare patients. Medicare paid $46,028 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024631
Medicare patients196
Paid by Medicare$46,028
Procedure codes5

Charles Hammond's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 6552024: 6314%

Charles Hammond compared with the California median for hospitalists, 2024

  • Charles Hammond
  • California median
Medicare services
631vs 43047% above
Medicare patients
196vs 201Close to median
Part D claims
66vs 69Close to median

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Charles Hammond'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.

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

Charles Hammond treated 196 Medicare patients in 2024, average age 73

CMS counts 196 Medicare patients who saw Charles Hammond in 2024. The largest group is 75 to 84, with 80 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% are also on Medicaid. Their average risk score is 3.55, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Charles Hammond's median patient age at 60, with 48% women.

Medicare patients, 2024196
Average age73
Average risk score3.55
Also on Medicaid44%

Charles Hammond's Medicare patients by age, 2024

Charles Hammond's Medicare patients by sex, 2024

  • Women9749%
  • Men9951%

Chronic conditions among Charles Hammond's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis56%
  4. Chronic kidney disease55%
  5. Heart failure49%
  6. Diabetes48%
  7. Mood disorders46%
  8. Ischemic heart disease45%

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

Charles Hammond's patients across all payers

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

Patient panel by age, all payers

Median age 60

Patient panel by sex, all payers

  • Women48%
  • Men51%

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

Charles Hammond wrote 168 Medicare Part D claims in 2024

In 2024, Charles Hammond wrote 168 Medicare Part D claims for 59 patients. 83% of them were for generic drugs. CMS names the drug for 66 of them, across 4 drugs with 11 or more claims each, at $504 in total drug cost. In 2019, CMS named 147 claims across 10 drugs.

Part D claims, 2024168
Drugs named by CMS4
Total drug cost$504
Part D patients59

Charles Hammond's Part D claims by kind of drug, 2024

  • Generic139 claims83%
  • Brand-name29 claims17%

Charles Hammond's most prescribed drugs by claims, 2020

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 Charles Hammond's Part D claims, 2024

  • Opioids8%13 of 168 claims
  • Antibiotics23%38 of 168 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, 2019 to 2020

  • 2019
  • 2020
Claims for drugs CMS names
2019: 1472020: 6655%

Drugs named by CMS: 4 in 2020, 10 in 2019.

See all prescribing by Charles Hammond

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

Charles Hammond scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Charles Hammond for performance year 2024, reported as part of a group. Charles Hammond accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Charles Hammond's MIPS scores, performance year 2024

  • 91of 100Final score
  • 84.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

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

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

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Charles Hammond has 3 publications on record

Dmand AI links 3 papers to Charles Hammond, published from 2020 to 2023. The most frequent topics are Bacteria, Bioreactors and Microalgae. Charles Hammond's most frequent co-authors are George J. Alangaden, MD, Indira Brar, MD and Zachary Dean Demertzis, DO.

Papers3
Years published2020 to 2023

Topics Charles Hammond writes about most

  • Bacteria
  • Bioreactors
  • Microalgae
  • Waste Disposal, Fluid
  • Wastewater
  • Water Purification

Charles Hammond's most frequent co-authors

Recent publications by Charles Hammond

See all 3 publications and co-authors

See who Charles Hammond researches with

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

How network discovery works

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

Charles Hammond graduated from Wayne State University School Of Medicine

Charles Hammond graduated from Wayne State University School Of Medicine in 2017.

  1. Medical schoolWayne State University School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Charles Hammond accepts plans from 12 insurance carriers

Charles Hammond is in network with 12 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • HCSC
  • Molina
  • Alliant Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • +4 more carriersWith a free account

Plan types Charles Hammond accepts, by number of carriers

  1. HMO7
  2. PPO7
  3. Medicare5
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Charles Hammond'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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 Charles Hammond

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

What is Charles Hammond's NPI number?

Charles Hammond's NPI number is 1033641816. It was assigned on March 30, 2017, and it is active in the NPI Registry.

What does Charles Hammond specialize in?

Charles Hammond is a hospitalist in San Diego, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Charles Hammond practice?

Charles Hammond practices at 200 W Arbor Dr, San Diego, CA 92103. Charles Hammond's primary practice is UCSD Hillcrest Medical Center in San Diego, California.

What is Charles Hammond's office phone number?

The practice phone on file for Charles Hammond is (619) 543-6222.

What is Charles Hammond's medical license number?

Charles Hammond holds California license A169655, one of the licenses on file in 2 states.

Which states has Charles Hammond been licensed in?

Dmand AI has state licenses on file for Charles Hammond in California (2020 to 2026) and Michigan (2017 to 2019).

Which hospitals is Charles Hammond affiliated with?

Charles Hammond is affiliated with Hillcrest Medical Center.

What medical group is Charles Hammond part of?

Charles Hammond is linked to UC San Diego Health.

Does Charles Hammond accept Medicare?

Yes. CMS data shows Charles Hammond billed Medicare for 631 services in 2024, and Charles Hammond accepts Medicare assignment.

What is Charles Hammond's MIPS score?

Charles Hammond's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Charles Hammond see?

CMS counts 196 Medicare patients who saw Charles Hammond in 2024, with an average age of 73.

Is Charles Hammond board certified?

Yes. Charles Hammond is board certified in internal medicine by the American Board of Internal Medicine.

What services does Charles Hammond bill to Medicare?

In 2024, Charles Hammond's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).

Where did Charles Hammond go to medical school?

Charles Hammond graduated from Wayne State University School Of Medicine in 2017.

What drugs does Charles Hammond prescribe most?

In 2020 Medicare Part D data, Charles Hammond's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Lisinopril.

How long has Charles Hammond been practicing?

Charles Hammond graduated from medical school in 2017, 9 years ago.

Does Charles Hammond do research?

Dmand AI links 3 publications to Charles Hammond, published from 2020 to 2023.

Who does Charles Hammond publish with?

Charles Hammond's most frequent co-authors are George J. Alangaden, MD (1 shared paper), Indira Brar, MD (1 shared paper) and Zachary Dean Demertzis, DO (1 shared paper).

What insurance does Charles Hammond accept?

Charles Hammond is in network with 12 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.

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