Dr. Stuart M. Klein, MD
- Medicare services, 2024
- 2,235
- Medicare patients, 2024
- 473
- Part D claims, 2024
- 2,966
- Hospital affiliations
- 4
- Industry payments
- $1,257
- Practice address
- 901 Macarthur Blvd, Munster, IN 46321
- Practice phone
- Call (219) 836-1600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Klein's professional email, personal email and mobile number
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Dr. Stuart M. Klein is an internist in Munster, Indiana
Dr. Klein practices at Community Hospital in Munster, Indiana, part of Community Healthcare System.
Dr. Klein's NPI, 1790870483, was assigned on October 4, 2006. Dr. Klein graduated from Chicago College of Medicine and Surgery in 1979. Dr. Klein holds Indiana license 01031791A.
- NPI
- 1790870483NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456240092
- NPI enumeration date
- October 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (219) 836-1600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stuart M. Klein practices at Community Hospital in Munster, Indiana
Dr. Klein's primary practice is Community Hospital, at 901 Macarthur Blvd, Munster, IN 46321 in Lake County. The practice phone is (219) 836-1600.
- Community Hospital901 Macarthur Blvd, Munster, IN 46321 · Lake CountyPhone(219) 836-1600
Source: Dmand AI Affiliation Data
Dr. Stuart M. Klein is affiliated with 6 sites of care and 1 medical group
Dr. Klein's primary practice is Community Hospital in Munster, Indiana, part of Community Healthcare System. Dr. Klein is also affiliated with Franciscan Health Munster. The medical group on file is Medical Associates of Highland. Dmand AI also links Dr. Klein to 2 more hospitals, 1 group practice or clinic and 1 home health agency, 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. Stuart M. Klein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klein practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Hospital | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stuart M. Klein is one of 1,987 internists in Indiana
Internal medicine is Dr. Klein's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Klein is licensed in Indiana.
Specialties and state licenses
- Internal medicine, IndianaPrimary
Internists near Dr. Klein
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. Stuart M. Klein billed Medicare for 2,235 services in 2024
CMS data shows 2,235 Medicare services from Dr. Klein across 16 procedure codes in 2024, for 473 Medicare patients. Medicare paid $138,515 for them.
Dr. Klein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,2312024: 1,96212%
- Other services
- 2023: 1292024: 23884%
- Lab and pathology
- 2023: 222024: 249%
- Tests and treatments
- 2023: 232024: 1152%
Where Dr. Klein's Medicare services took place, 2024
- In an office85338%
- In a facility1,38262%
Dr. Klein compared with the Indiana median for internists, 2024
- Dr. Klein
- Indiana median
- Medicare services
- 2,235vs 5204.3 times
- Medicare patients
- 473vs 2122.2 times
- Part D claims
- 2,471vs 15915.5 times
Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.
Dr. Klein'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.
Need commercial claims for Dr. Klein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Klein and other internists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stuart M. Klein treated 473 Medicare patients in 2024, average age 75
CMS counts 473 Medicare patients who saw Dr. Klein in 2024. The largest group is 65 to 74, with 153 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.99, 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. Klein's median patient age at 71, with 50% women.
Dr. Klein's Medicare patients by age, 2024
Dr. Klein's Medicare patients by sex, 2024
- Women25654%
- Men21746%
Chronic conditions among Dr. Klein's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Diabetes56%
- Ischemic heart disease55%
- Chronic kidney disease51%
- Heart failure50%
- Mood disorders45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Klein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stuart M. Klein wrote 2,966 Medicare Part D claims in 2024
In 2024, Dr. Klein wrote 2,966 Medicare Part D claims for 323 patients. 81% of them were for generic drugs. CMS names the drug for 2,471 of them, across 63 drugs with 11 or more claims each, at $332,948 in total drug cost. In 2023, CMS named 2,379 claims across 63 drugs.
Dr. Klein's Part D claims by kind of drug, 2024
- Generic2,396 claims81%
- Brand-name540 claims18%
- Other30 claims1%
Dr. Klein'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. Klein's Part D claims, 2024
- Opioids2%53 of 2,966 claims
- Antibiotics2%72 of 2,966 claims
- Antipsychotics, patients 65 and over1%27 of 2,966 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: 2,3792024: 2,4714%
Drugs named by CMS: 63 in 2024, 63 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
Dr. Stuart M. Klein offers telehealth to Medicare patients
Dr. Klein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Klein as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Stuart M. Klein received $1,257 in industry payments from 2016 to 2025
CMS Open Payments shows 68 general payments to Dr. Klein from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Amgen Inc. paid the most, $221.
General payments to Dr. Klein by program year, 2016 to 2025
General payments to Dr. Klein by kind, 2016 to 2025
- Food and beverage$1,21296%
- Education$454%
Companies that paid Dr. Klein the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stuart M. Klein graduated from Chicago College of Medicine and Surgery
Dr. Klein graduated from Chicago College of Medicine and Surgery in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stuart M. Klein'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 | Dmand AI Affiliation 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 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 percentiles | Doctors and Clinicians National Downloadable File (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. Stuart M. Klein
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. Stuart M. Klein's NPI number?
Dr. Stuart M. Klein's NPI number is 1790870483. It was assigned on October 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stuart M. Klein?
Dr. Stuart M. Klein is an internist in Munster, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Stuart M. Klein practice?
Dr. Klein practices at 901 Macarthur Blvd, Munster, IN 46321. Dr. Klein's primary practice is Community Hospital in Munster, Indiana, part of Community Healthcare System. Dmand AI also links Dr. Klein to 2 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Stuart M. Klein's office phone number?
The practice phone on file for Dr. Klein is (219) 836-1600.
What is Dr. Stuart M. Klein's medical license number?
Dr. Klein holds Indiana license 01031791A.
Which hospitals is Dr. Stuart M. Klein affiliated with?
Dr. Klein practices at Community Hospital in Munster, Indiana. Dr. Klein is also affiliated with Franciscan Health Munster. Dmand AI links Dr. Klein to 2 more hospitals.
What medical group is Dr. Stuart M. Klein part of?
Dr. Klein is linked to Medical Associates of Highland.
Does Dr. Stuart M. Klein accept Medicare?
Yes. CMS data shows Dr. Klein billed Medicare for 2,235 services in 2024, and Dr. Klein accepts Medicare assignment.
Does Dr. Stuart M. Klein offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Klein as offering telehealth services.
How many Medicare patients does Dr. Stuart M. Klein see?
CMS counts 473 Medicare patients who saw Dr. Klein in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Stuart M. Klein bill to Medicare?
In 2024, Dr. Klein's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and care management and other visits (99490).
Where did Dr. Stuart M. Klein go to medical school?
Dr. Klein graduated from Chicago College of Medicine and Surgery in 1979.
What drugs does Dr. Stuart M. Klein prescribe most?
In 2024 Medicare Part D data, Dr. Klein's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Carvedilol.
Has Dr. Stuart M. Klein received payments from drug or device companies?
CMS Open Payments shows $1,257 in general payments to Dr. Klein from 19 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Stuart M. Klein been practicing?
Dr. Klein graduated from medical school in 1979, 47 years ago.
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