Dr. Carlos Patrick Holden, MD

  • Derby, CT
  • Emergency medicine physician
NPI1356326573PAC ID1951330174
Medicare services, 2024
409
Medicare patients, 2024
388
Part D claims, 2024
376
Hospital affiliations
3
Industry payments
$719
Practice address
130 Division St, Derby, CT 06418
Practice phone
Call (203) 732-7500
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Griffin Hospital

Hospital · Derby, Connecticut

See all 6 affiliations

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Dr. Carlos Patrick Holden is an emergency medicine physician in Derby, Connecticut

Dr. Holden practices at Griffin Hospital in Derby, Connecticut, part of Griffin Hospital.

Dr. Holden's NPI, 1356326573, was assigned on December 9, 2005. Dr. Holden graduated from University of Connecticut in 2002. Dr. Holden holds New York license 236858.

NPI and contact details
Medicare PAC ID
1951330174
NPI enumeration date
December 9, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(203) 732-7500
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
50
Medical school graduation
2002

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

Dr. Carlos Patrick Holden practices at 2 locations in Derby, Connecticut

Dr. Holden's primary practice is Griffin Hospital, at 130 Division St, Derby, CT 06418 in New Haven County. The practice phone is (203) 732-7500. Dr. Holden also practices at Griffin Hospital, 144 Division St, Derby, CT 06418.

  • Griffin HospitalPrimary
    130 Division St, Derby, CT 06418 · New Haven CountyPhone(203) 732-7500
  • Griffin Hospital
    144 Division St, Derby, CT 06418 · Naugatuck Vly CountyPhone(203) 732-7360

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

Dr. Carlos Patrick Holden is affiliated with 3 sites of care and 3 medical groups

Dr. Holden's primary practice is Griffin Hospital in Derby, Connecticut, part of Griffin Hospital. Dr. Holden is also affiliated with UConn Health Waterbury Hospital. The medical group on file is Emergency Physicians of Connecticut. Dmand AI also links Dr. Holden to 1 more hospital and 2 medical groups, each named with a free account.

See all 6 affiliations for Dr. Holden

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

Dmand AI tracks the EHR system at Dr. Carlos Patrick Holden's practice

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

EHR by site
SiteEHR vendor and product
Griffin HospitalAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Carlos Patrick Holden is one of 683 emergency medicine physicians in Connecticut

Emergency medicine is Dr. Holden's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Holden's licenses on file in 2 states: New York and Rhode Island.

Specialties and state licenses

  • Emergency medicine, New YorkPrimaryLicense 236858 · taxonomy 207P00000X
  • Rhode Island licenseLicense MD19640

Emergency medicine physicians near Dr. Holden

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. Carlos Patrick Holden billed Medicare for 409 services in 2024

CMS data shows 409 Medicare services from Dr. Holden across 3 procedure codes in 2024, for 388 Medicare patients. Medicare paid $49,690 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024409
Medicare patients388
Paid by Medicare$49,690
Procedure codes3

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

  • 2023
  • 2024
Office and hospital visits
2023: 5182024: 40921%

Dr. Holden compared with the Connecticut median for emergency medicine physicians, 2024

  • Dr. Holden
  • Connecticut median
Medicare services
409vs 24368% above
Medicare patients
388vs 25055% above
Part D claims
239vs 485.0 times

Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.

Dr. Holden'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. Holden

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

Dr. Carlos Patrick Holden treated 388 Medicare patients in 2024, average age 75

CMS counts 388 Medicare patients who saw Dr. Holden in 2024. The largest group is 75 to 84, with 117 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 1.96, 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. Holden's median patient age at 47, with 58% women.

Medicare patients, 2024388
Average age75
Average risk score1.96
Also on Medicaid37%

Dr. Holden's Medicare patients by age, 2024

Dr. Holden's Medicare patients by sex, 2024

  • Women20753%
  • Men18147%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis48%
  4. Anxiety45%
  5. Ischemic heart disease44%
  6. Mood disorders42%
  7. Diabetes39%
  8. Depression37%

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

Dr. Holden's patients across all payers

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

Patient panel by age, all payers

Median age 47

Patient panel by sex, all payers

  • Women58%
  • Men41%

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

Dr. Carlos Patrick Holden wrote 376 Medicare Part D claims in 2024

In 2024, Dr. Holden wrote 376 Medicare Part D claims for 277 patients. 89% of them were for generic drugs. CMS names the drug for 239 of them, across 11 drugs with 11 or more claims each, at $8,265 in total drug cost. In 2023, CMS named 144 claims across 6 drugs.

Part D claims, 2024376
Drugs named by CMS11
Total drug cost$8,265
Part D patients277

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

  • Generic336 claims89%
  • Brand-name and other40 claims11%

Dr. Holden'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. Holden's Part D claims, 2024

  • Opioids7%25 of 376 claims
  • Antibiotics23%88 of 376 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: 1442024: 23966%

Drugs named by CMS: 11 in 2024, 6 in 2023.

See all prescribing by Dr. Holden

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

How Dr. Carlos Patrick Holden takes part in Medicare

Dr. Holden accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Carlos Patrick Holden received $719 in industry payments from 2020 to 2024

CMS Open Payments shows 29 general payments to Dr. Holden from 8 drug and device companies from 2020 to 2024. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $213.

General payments to Dr. Holden by program year, 2020 to 2024

Companies that paid Dr. Holden the most, 2020 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Holden

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

Dr. Carlos Patrick Holden graduated from University of Connecticut

Dr. Holden graduated from University of Connecticut in 2002.

  1. Medical schoolUniversity of Connecticut

Source: Dmand AI Professional Profile Data

Sources for Dr. Carlos Patrick Holden'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 Affiliation DataDmand AI Practice 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)
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. Carlos Patrick Holden

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. Carlos Patrick Holden's NPI number?

Dr. Carlos Patrick Holden's NPI number is 1356326573. It was assigned on December 9, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Carlos Patrick Holden?

Dr. Carlos Patrick Holden is an emergency medicine physician in Derby, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Carlos Patrick Holden practice?

Dr. Holden practices at 130 Division St, Derby, CT 06418. Dr. Holden also practices at 144 Division St, Derby, CT 06418. Dr. Holden's primary practice is Griffin Hospital in Derby, Connecticut, part of Griffin Hospital. Dmand AI also links Dr. Holden to 1 hospital and 2 medical groups.

What is Dr. Carlos Patrick Holden's office phone number?

The practice phone on file for Dr. Holden is (203) 732-7500.

What is Dr. Carlos Patrick Holden's medical license number?

Dr. Holden holds New York license 236858, one of the licenses on file in 2 states.

Which states has Dr. Carlos Patrick Holden been licensed in?

Dmand AI has state licenses on file for Dr. Holden in New York and Rhode Island.

Which hospitals is Dr. Carlos Patrick Holden affiliated with?

Dr. Holden practices at Griffin Hospital in Derby, Connecticut. Dr. Holden is also affiliated with UConn Health Waterbury Hospital. Dmand AI links Dr. Holden to 1 more hospital.

What medical group is Dr. Carlos Patrick Holden part of?

Dr. Holden is linked to Emergency Physicians of Connecticut. Dmand AI links Dr. Holden to 2 more medical groups.

Does Dr. Carlos Patrick Holden accept Medicare?

Yes. CMS data shows Dr. Holden billed Medicare for 409 services in 2024, and Dr. Holden accepts Medicare assignment.

How many Medicare patients does Dr. Carlos Patrick Holden see?

CMS counts 388 Medicare patients who saw Dr. Holden in 2024, with an average age of 75.

Show 5 more questionsShow fewer questions

What services does Dr. Carlos Patrick Holden bill to Medicare?

In 2024, Dr. Holden's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).

Where did Dr. Carlos Patrick Holden go to medical school?

Dr. Holden graduated from University of Connecticut in 2002.

What drugs does Dr. Carlos Patrick Holden prescribe most?

In 2024 Medicare Part D data, Dr. Holden's most prescribed drugs by claims were Celecoxib, Ondansetron ODT and Ibuprofen.

Has Dr. Carlos Patrick Holden received payments from drug or device companies?

CMS Open Payments shows $719 in general payments to Dr. Holden from 8 companies from 2020 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Carlos Patrick Holden been practicing?

Dr. Holden graduated from medical school in 2002, 24 years ago.

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