Dr. Michael John Naso, MD
- Medicare services, 2024
- 303
- Medicare patients, 2024
- 188
- Part D claims, 2024
- 95
- MIPS score, 2024
- 55
- Hospital affiliations
- 1
- Practice address
- 130 Division St, Derby, CT 06418
- Practice phone
- Call (203) 732-7500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Naso's professional email, personal email and mobile number
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Dr. Michael John Naso is an internist in Derby, Connecticut
Dr. Naso practices at Griffin Hospital in Derby, Connecticut, part of Griffin Hospital.
Dr. Naso's NPI, 1538423488, was assigned on June 26, 2012. Dr. Naso graduated from Temple University School of Medicine in 2012. Dr. Naso holds Connecticut license 63557.
- NPI
- 1538423488NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668701947
- NPI enumeration date
- June 26, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 732-7500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael John Naso practices at 2 locations in Derby, Connecticut
Dr. Naso'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. Naso also practices at Griffin Hospital, 144 Division St, Derby, CT 06418.
- Griffin HospitalPrimary130 Division St, Derby, CT 06418 · New Haven CountyPhone(203) 732-7500
- Griffin Hospital144 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. Michael John Naso is affiliated with 6 sites of care and 5 medical groups
Dr. Naso's primary practice is Griffin Hospital in Derby, Connecticut, part of Griffin Hospital. The medical group on file is Hartford HealthCare Medical Group Specialists. Dmand AI also links Dr. Naso to 4 more medical groups, 3 group practices and clinics and 2 home health agencies, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael John Naso's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Naso practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Griffin Hospital | Available with a free account |
| +5 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Griffin Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael John Naso is one of 2,189 internists in Connecticut
Internal medicine is Dr. Naso's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Naso is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Internists near Dr. Naso
Counts of internists 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. Michael John Naso billed Medicare for 303 services in 2024
CMS data shows 303 Medicare services from Dr. Naso across 6 procedure codes in 2024, for 188 Medicare patients. Medicare paid $36,741 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Naso's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4602024: 30334%
Dr. Naso compared with the Connecticut median for internists, 2024
- Dr. Naso
- Connecticut median
- Medicare services
- 303vs 39022% below
- Medicare patients
- 188vs 1729% above
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Naso'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
Dr. Michael John Naso treated 188 Medicare patients in 2024, average age 77
CMS counts 188 Medicare patients who saw Dr. Naso in 2024. The largest group is 75 to 84, with 66 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 2.33, 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. Naso's median patient age at 59, with 39% women.
Dr. Naso's Medicare patients by age, 2024
Dr. Naso's Medicare patients by sex, 2024
- Women11260%
- Men7640%
Chronic conditions among Dr. Naso's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease55%
- Arthritis54%
- Heart failure54%
- Mood disorders52%
- Anxiety51%
- Ischemic heart disease48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Naso's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women39%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael John Naso wrote 95 Medicare Part D claims in 2024
In 2024, Dr. Naso wrote 95 Medicare Part D claims for 45 patients. 83% of them were for generic drugs.
Dr. Naso's Part D claims by kind of drug, 2024
- Generic79 claims83%
- Brand-name16 claims17%
Drug classes CMS tracks in Dr. Naso's Part D claims, 2024
- Antibiotics22%21 of 95 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Michael John Naso scored 55 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 55 out of 100 for Dr. Naso for performance year 2024, reported as part of a group. Dr. Naso accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Naso's MIPS scores, performance year 2024
- 55of 100Final score
- 11.8of 100Quality
- 98of 100Promoting Interoperability
- 0of 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
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Dr. Michael John Naso received $899 in industry payments from 2017 to 2025
CMS Open Payments shows 39 general payments to Dr. Naso from 17 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $213.
General payments to Dr. Naso by program year, 2017 to 2025
Companies that paid Dr. Naso the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael John Naso graduated from Temple University School of Medicine
Dr. Naso graduated from Temple University School of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael John Naso's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael John Naso
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. Michael John Naso's NPI number?
Dr. Michael John Naso's NPI number is 1538423488. It was assigned on June 26, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael John Naso?
Dr. Michael John Naso is an internist in Derby, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael John Naso practice?
Dr. Naso practices at 130 Division St, Derby, CT 06418. Dr. Naso also practices at 144 Division St, Derby, CT 06418. Dr. Naso's primary practice is Griffin Hospital in Derby, Connecticut, part of Griffin Hospital. Dmand AI also links Dr. Naso to 4 medical groups, 3 group practices and clinics and 2 home health agencies.
What is Dr. Michael John Naso's office phone number?
The practice phone on file for Dr. Naso is (203) 732-7500.
What is Dr. Michael John Naso's medical license number?
Dr. Naso holds Connecticut license 63557.
Which hospitals is Dr. Michael John Naso affiliated with?
Dr. Naso practices at Griffin Hospital in Derby, Connecticut.
What medical group is Dr. Michael John Naso part of?
Dr. Naso is linked to Hartford HealthCare Medical Group Specialists. Dmand AI links Dr. Naso to 4 more medical groups.
Does Dr. Michael John Naso accept Medicare?
Yes. CMS data shows Dr. Naso billed Medicare for 303 services in 2024, and Dr. Naso accepts Medicare assignment.
What is Dr. Michael John Naso's MIPS score?
Dr. Naso's MIPS final score for performance year 2024 is 55 out of 100, reported as part of a group.
How many Medicare patients does Dr. Michael John Naso see?
CMS counts 188 Medicare patients who saw Dr. Naso in 2024, with an average age of 77.
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What services does Dr. Michael John Naso bill to Medicare?
In 2024, Dr. Naso's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99233) and hospital inpatient care (99239).
Where did Dr. Michael John Naso go to medical school?
Dr. Naso graduated from Temple University School of Medicine in 2012.
Has Dr. Michael John Naso received payments from drug or device companies?
CMS Open Payments shows $899 in general payments to Dr. Naso from 17 companies from 2017 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Michael John Naso been practicing?
Dr. Naso graduated from medical school in 2012, 14 years ago.
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