Dr. Mark J. Hotchkiss, MD

  • Fairfield, CT
  • Nephrologist
NPI1861488033PAC ID7315031580
Medicare services, 2024
656
Medicare patients, 2024
290
Part D claims, 2024
1,809
MIPS score, 2024
95
Hospital affiliations
3
Practice address
501 Kings E Hwy, Fairfield, CT 06825
Practice phone
Call (860) 561-1233
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Dental Sedation Center of Connecticut

Fairfield, Connecticut

See all 7 affiliations

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Dr. Mark J. Hotchkiss is a nephrologist in Fairfield, Connecticut

Dr. Hotchkiss practices at Dental Sedation Center of Connecticut in Fairfield, Connecticut.

Dr. Hotchkiss' NPI, 1861488033, was assigned on September 23, 2005. Dr. Hotchkiss graduated from Renaissance School of Medicine at Stony Brook University in 1990. Dr. Hotchkiss holds Connecticut license 34345.

NPI and contact details
Medicare PAC ID
7315031580
NPI enumeration date
September 23, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(860) 561-1233
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
62
Medical school graduation
1990

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

Dr. Mark J. Hotchkiss practices at Dental Sedation Center of Connecticut in Fairfield, Connecticut

Dr. Hotchkiss' primary practice is Dental Sedation Center of Connecticut, at 501 Kings E Hwy, Fairfield, CT 06825 in Greater Bridgeport County. The practice phone is (860) 561-1233.

  • Dental Sedation Center of Connecticut
    501 Kings E Hwy, Fairfield, CT 06825 · Greater Bridgeport CountyPhone(860) 561-1233

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

Dr. Mark J. Hotchkiss is affiliated with 6 sites of care and 1 medical group

Dr. Hotchkiss' primary practice is Dental Sedation Center of Connecticut in Fairfield, Connecticut. Dr. Hotchkiss is also affiliated with Yale New Haven Hospital. The medical group on file is Physicians Alliance of Connecticut (PACT). Dmand AI also links Dr. Hotchkiss to 2 more hospitals, 1 dialysis center and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Dr. Hotchkiss

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 Dr. Mark J. Hotchkiss' practice

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

EHR by site
SiteEHR vendor and product
Dental Sedation Center of ConnecticutAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mark J. Hotchkiss is one of 141 nephrologists in Connecticut

Nephrology is Dr. Hotchkiss' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Hotchkiss is board certified in nephrology by the American Board of Internal Medicine. Dr. Hotchkiss is licensed in Connecticut.

Specialties and state licenses

  • Nephrology, ConnecticutPrimaryLicense 34345 · 1995 to 2026 · taxonomy 207RN0300X

Clinical focus

Dmand AI lists acute kidney failure, chronic anemia, chronic kidney disease, fluid and electrolyte imbalances, kidney cysts, kidney disease and parathyroid gland disorder among the conditions Dr. Hotchkiss treats.

Nephrologists near Dr. Hotchkiss

Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.

141nephrologists in Connecticut
3nephrologists in Fairfield

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

Dr. Mark J. Hotchkiss billed Medicare for 656 services in 2024

CMS data shows 656 Medicare services from Dr. Hotchkiss across 7 procedure codes in 2024, for 290 Medicare patients. Medicare paid $101,677 for them.

Medicare services, 2024656
Medicare patients290
Paid by Medicare$101,677
Procedure codes7

Dr. Hotchkiss' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 5872024: 47918%
Tests and treatments
2023: 2892024: 17739%
Other services
2023: 2,4302024: 0100%

Where Dr. Hotchkiss' Medicare services took place, 2024

  • In an office54283%
  • In a facility11417%

Dr. Hotchkiss compared with the Connecticut median for nephrologists, 2024

  • Dr. Hotchkiss
  • Connecticut median
Medicare services
656vs 73210% below
Medicare patients
290vs 26111% above
Part D claims
1,511vs 6002.5 times

Medians across 137 nephrologists in Connecticut with Dmand AI profiles that report each measure.

Dr. Hotchkiss' 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. Hotchkiss

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hotchkiss and other nephrologists in Connecticut.

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

Dr. Mark J. Hotchkiss treated 290 Medicare patients in 2024, average age 77

CMS counts 290 Medicare patients who saw Dr. Hotchkiss in 2024. The largest group is 75 to 84, with 102 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 31% are also on Medicaid. Their average risk score is 3.28, 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. Hotchkiss' median patient age at 73, with 47% women.

Medicare patients, 2024290
Average age77
Average risk score3.28
Also on Medicaid31%

Dr. Hotchkiss' Medicare patients by age, 2024

Dr. Hotchkiss' Medicare patients by sex, 2024

  • Women14751%
  • Men14349%

Chronic conditions among Dr. Hotchkiss' Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes54%
  5. Arthritis49%
  6. Heart failure39%
  7. Ischemic heart disease39%
  8. Mood disorders31%

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

Dr. Hotchkiss' patients across all payers

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

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women47%
  • Men51%

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

Dr. Mark J. Hotchkiss wrote 1,809 Medicare Part D claims in 2024

In 2024, Dr. Hotchkiss wrote 1,809 Medicare Part D claims for 329 patients. 87% of them were for generic drugs. CMS names the drug for 1,511 of them, across 39 drugs with 11 or more claims each, at $192,572 in total drug cost. In 2023, CMS named 1,305 claims across 36 drugs.

Part D claims, 20241,809
Drugs named by CMS39
Total drug cost$192,572
Part D patients329

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

  • Generic1,581 claims87%
  • Brand-name and other228 claims13%

Dr. Hotchkiss' 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. Hotchkiss' Part D claims, 2024

  • Opioids2%34 of 1,809 claims
  • Antibiotics2%41 of 1,809 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: 1,3052024: 1,51116%

Drugs named by CMS: 39 in 2024, 36 in 2023.

See all prescribing by Dr. Hotchkiss

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. Mark J. Hotchkiss scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Hotchkiss for performance year 2024, reported as part of a group. Dr. Hotchkiss accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hotchkiss as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Hotchkiss' MIPS scores, performance year 2024

  • 95of 100Final score
  • 83.7of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 73of 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

For MedTech and pharma teams

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Dr. Mark J. Hotchkiss received $3,118 in industry payments from 2016 to 2025

CMS Open Payments shows 150 general payments to Dr. Hotchkiss from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Amgen Inc. paid the most, $499.

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

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

$3.1Kin total
  • Food and beverage$3,09599%
  • Gifts$161%
  • Education$70%

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

Share is of all general payments to this clinician.

See all payments to Dr. Hotchkiss

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

Dr. Mark J. Hotchkiss has 1 award and honors on record

Dmand AI lists 1 award for Dr. Hotchkiss, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Hotchkiss

  1. 2012
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Mark J. Hotchkiss graduated from Renaissance School of Medicine at Stony Brook University

Dr. Hotchkiss graduated from Renaissance School of Medicine at Stony Brook University in 1990.

  1. Medical schoolRenaissance School of Medicine at Stony Brook University
  2. Board certified in nephrologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mark J. Hotchkiss accepts plans from 15 insurance carriers

Dr. Hotchkiss is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Hotchkiss accepts, by number of carriers

  1. PPO9
  2. Medicare8
  3. HMO7
  4. POS5
  5. EPO4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mark J. Hotchkiss'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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. Mark J. Hotchkiss

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. Mark J. Hotchkiss' NPI number?

Dr. Mark J. Hotchkiss' NPI number is 1861488033. It was assigned on September 23, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark J. Hotchkiss?

Dr. Mark J. Hotchkiss is a nephrologist in Fairfield, Connecticut. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Mark J. Hotchkiss practice?

Dr. Hotchkiss practices at 501 Kings E Hwy, Fairfield, CT 06825. Dr. Hotchkiss' primary practice is Dental Sedation Center of Connecticut in Fairfield, Connecticut. Dmand AI also links Dr. Hotchkiss to 2 hospitals, 1 dialysis center and 1 group practice or clinic.

What is Dr. Mark J. Hotchkiss' office phone number?

The practice phone on file for Dr. Hotchkiss is (860) 561-1233.

What is Dr. Mark J. Hotchkiss' medical license number?

Dr. Hotchkiss holds Connecticut license 34345.

Which hospitals is Dr. Mark J. Hotchkiss affiliated with?

Dr. Hotchkiss is affiliated with Yale New Haven Hospital. Dmand AI links Dr. Hotchkiss to 2 more hospitals.

What medical group is Dr. Mark J. Hotchkiss part of?

Dr. Hotchkiss is linked to Physicians Alliance of Connecticut (PACT).

Does Dr. Mark J. Hotchkiss accept Medicare?

Yes. CMS data shows Dr. Hotchkiss billed Medicare for 656 services in 2024, and Dr. Hotchkiss accepts Medicare assignment.

Does Dr. Mark J. Hotchkiss offer telehealth?

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

What is Dr. Mark J. Hotchkiss' MIPS score?

Dr. Hotchkiss' MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Mark J. Hotchkiss see?

CMS counts 290 Medicare patients who saw Dr. Hotchkiss in 2024, with an average age of 77.

Is Dr. Mark J. Hotchkiss board certified?

Yes. Dr. Hotchkiss is board certified in nephrology by the American Board of Internal Medicine.

What services does Dr. Mark J. Hotchkiss bill to Medicare?

In 2024, Dr. Hotchkiss' most billed Medicare services were office visit, established patient (99214), dialysis (90960) and hospital inpatient care (99232).

Where did Dr. Mark J. Hotchkiss go to medical school?

Dr. Hotchkiss graduated from Renaissance School of Medicine at Stony Brook University in 1990.

What drugs does Dr. Mark J. Hotchkiss prescribe most?

In 2024 Medicare Part D data, Dr. Hotchkiss' most prescribed drugs by claims were Calcitriol, Amlodipine Besylate and Furosemide.

Has Dr. Mark J. Hotchkiss received payments from drug or device companies?

CMS Open Payments shows $3,118 in general payments to Dr. Hotchkiss from 24 companies from 2016 to 2025. The largest total came from Amgen Inc.

How long has Dr. Mark J. Hotchkiss been practicing?

Dr. Hotchkiss graduated from medical school in 1990, 36 years ago.

What insurance does Dr. Mark J. Hotchkiss accept?

Dr. Hotchkiss is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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