Dr. Stephen C. Mackler, MD
- Medicare services, 2024
- 5,849
- Medicare patients, 2024
- 568
- Part D claims, 2024
- 7,604
- Hospital affiliations
- 3
- Industry payments
- $374
- Practice address
- 795 Middle St, Fall River, MA 02721
- Practice phone
- Call (401) 444-4690
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Anne's Hospital
Fall River, Massachusetts
Find Dr. Mackler's professional email, personal email and mobile number
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Dr. Stephen C. Mackler is an internist in Fall River, Massachusetts
Dr. Mackler practices at St Anne's Hospital in Fall River, Massachusetts.
Dr. Mackler's NPI, 1669442745, was assigned on January 23, 2006. Dr. Mackler graduated from Tufts University School of Medicine in 1981. Dr. Mackler holds Massachusetts license 51204.
- NPI
- 1669442745NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032008362
- NPI enumeration date
- January 23, 2006
- NPI status
- Active
- Practice phone
- (401) 444-4690
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Stephen C. Mackler practices at St Anne's Hospital in Fall River, Massachusetts
Dr. Mackler's primary practice is St Anne's Hospital, at 795 Middle St, Fall River, MA 02721 in Bristol County. The practice phone is (401) 444-4690.
- St Anne's Hospital795 Middle St, Fall River, MA 02721 · Bristol CountyPhone(401) 444-4690
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen C. Mackler is affiliated with 9 sites of care and 3 medical groups
Dr. Mackler's primary practice is St Anne's Hospital in Fall River, Massachusetts. Dr. Mackler is also affiliated with Charlton Memorial Hospital. The medical group on file is Brown Health Medical Group. Dmand AI also links Dr. Mackler to 2 more hospitals, 3 group practices and clinics, 2 home health agencies and 2 medical groups, each named with a free account.
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. Stephen C. Mackler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mackler practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Anne's Hospital | Available with a free account |
| +8 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen C. Mackler is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Mackler's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mackler is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Mackler
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. Stephen C. Mackler billed Medicare for 5,849 services in 2024
CMS data shows 5,849 Medicare services from Dr. Mackler across 35 procedure codes in 2024, for 568 Medicare patients. Medicare paid $214,318 for them. Every service was in an office.
Dr. Mackler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 8,4152024: 2,84066%
- Office and hospital visits
- 2023: 1,5092024: 1,4246%
- Other services
- 2023: 8112024: 64221%
- Surgery
- 2023: 1,4252024: 51964%
- Tests and treatments
- 2023: 3402024: 27419%
- Drugs given in the office
- 2023: 1672024: 15010%
Dr. Mackler compared with the Massachusetts median for internists, 2024
- Dr. Mackler
- Massachusetts median
- Medicare services
- 5,849vs 43113.6 times
- Medicare patients
- 568vs 1942.9 times
- Part D claims
- 7,056vs 40217.6 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Mackler'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mackler and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen C. Mackler treated 568 Medicare patients in 2024, average age 76
CMS counts 568 Medicare patients who saw Dr. Mackler in 2024. The largest group is 65 to 74, with 242 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mackler's median patient age at 70, with 39% women.
Dr. Mackler's Medicare patients by age, 2024
Dr. Mackler's Medicare patients by sex, 2024
- Women23341%
- Men33559%
Chronic conditions among Dr. Mackler's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis58%
- Ischemic heart disease35%
- Diabetes34%
- Anxiety24%
- Atrial fibrillation19%
- COPD19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mackler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
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. Stephen C. Mackler wrote 7,604 Medicare Part D claims in 2024
In 2024, Dr. Mackler wrote 7,604 Medicare Part D claims for 731 patients. 93% of them were for generic drugs. CMS names the drug for 7,056 of them, across 96 drugs with 11 or more claims each, at $247,269 in total drug cost. In 2023, CMS named 7,225 claims across 96 drugs.
Dr. Mackler's Part D claims by kind of drug, 2024
- Generic7,090 claims93%
- Brand-name491 claims6%
- Other23 claims0%
Dr. Mackler'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. Mackler's Part D claims, 2024
- Opioids3%250 of 7,604 claims
- Antibiotics2%142 of 7,604 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: 7,2252024: 7,0562%
Drugs named by CMS: 96 in 2024, 96 in 2023.
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
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Dr. Stephen C. Mackler received $374 in industry payments from 2017 to 2024
CMS Open Payments shows 14 general payments to Dr. Mackler from 6 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 87% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $171.
General payments to Dr. Mackler by program year, 2017 to 2024
General payments to Dr. Mackler by kind, 2017 to 2024
- Food and beverage$32787%
- Education$4713%
Companies that paid Dr. Mackler the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen C. Mackler graduated from Tufts University School of Medicine
Dr. Mackler graduated from Tufts University School of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen C. Mackler'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (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. Stephen C. Mackler
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. Stephen C. Mackler's NPI number?
Dr. Stephen C. Mackler's NPI number is 1669442745. It was assigned on January 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen C. Mackler?
Dr. Stephen C. Mackler is an internist in Fall River, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Stephen C. Mackler practice?
Dr. Mackler practices at 795 Middle St, Fall River, MA 02721. Dr. Mackler's primary practice is St Anne's Hospital in Fall River, Massachusetts. Dmand AI also links Dr. Mackler to 2 hospitals, 3 group practices and clinics, 2 home health agencies and 2 medical groups.
What is Dr. Stephen C. Mackler's office phone number?
The practice phone on file for Dr. Mackler is (401) 444-4690.
What is Dr. Stephen C. Mackler's medical license number?
Dr. Mackler holds Massachusetts license 51204.
Which hospitals is Dr. Stephen C. Mackler affiliated with?
Dr. Mackler is affiliated with Charlton Memorial Hospital. Dmand AI links Dr. Mackler to 2 more hospitals.
What medical group is Dr. Stephen C. Mackler part of?
Dr. Mackler is linked to Brown Health Medical Group. Dmand AI links Dr. Mackler to 2 more medical groups.
Does Dr. Stephen C. Mackler accept Medicare?
Yes. CMS data shows Dr. Mackler billed Medicare for 5,849 services in 2024.
How many Medicare patients does Dr. Stephen C. Mackler see?
CMS counts 568 Medicare patients who saw Dr. Mackler in 2024, with an average age of 76.
What services does Dr. Stephen C. Mackler bill to Medicare?
In 2024, Dr. Mackler's most billed Medicare services were office visit, established patient (99213), surgery: heart and blood vessels (36415) and medicare service (G0439).
Show 4 more questionsShow fewer questions
Where did Dr. Stephen C. Mackler go to medical school?
Dr. Mackler graduated from Tufts University School of Medicine in 1981.
What drugs does Dr. Stephen C. Mackler prescribe most?
In 2024 Medicare Part D data, Dr. Mackler's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Omeprazole.
Has Dr. Stephen C. Mackler received payments from drug or device companies?
CMS Open Payments shows $374 in general payments to Dr. Mackler from 6 companies from 2017 to 2024. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Stephen C. Mackler been practicing?
Dr. Mackler graduated from medical school in 1981, 45 years ago.
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