Dr. Nathan D. Carpenter, MD
- Medicare services, 2024
- 2,885
- Medicare patients, 2024
- 1,157
- Part D claims, 2024
- 2,443
- MIPS score, 2024
- 92
- Hospital affiliations
- 4
- Practice address
- 1630 Adams St, Mankato, MN 56001
- Practice phone
- Call (507) 345-6151
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ophthalmology Associates of Mankato PA
Mankato, Minnesota
Find Dr. Carpenter's professional email, personal email and mobile number
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Dr. Nathan D. Carpenter is an ophthalmologist in Mankato, Minnesota
Dr. Carpenter practices at Ophthalmology Associates of Mankato PA in Mankato, Minnesota.
Dr. Carpenter's NPI, 1083025548, was assigned on May 17, 2014. Dr. Carpenter graduated from University of North Dakota School of Medicine in 2014. Dr. Carpenter holds Minnesota license 65076.
- NPI
- 1083025548NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002110541
- NPI enumeration date
- May 17, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (507) 345-6151
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan D. Carpenter practices at Ophthalmology Associates of Mankato PA in Mankato, Minnesota
Dr. Carpenter's primary practice is Ophthalmology Associates of Mankato PA, at 1630 Adams St, Mankato, MN 56001 in Blue Earth County. The practice phone is (507) 345-6151.
- Ophthalmology Associates of Mankato PA1630 Adams St, Mankato, MN 56001 · Blue Earth CountyPhone(507) 345-6151
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nathan D. Carpenter is affiliated with 6 sites of care and 1 medical group
Dr. Carpenter's primary practice is Ophthalmology Associates of Mankato PA in Mankato, Minnesota. Dr. Carpenter is also affiliated with Mayo Clinic Health System in Mankato. Dmand AI also links Dr. Carpenter to 3 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Nathan D. Carpenter's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Carpenter practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ophthalmology Associates of Mankato PA | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathan D. Carpenter is one of 346 ophthalmologists in Minnesota
Ophthalmology is Dr. Carpenter's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Carpenter is licensed in Minnesota.
Specialties and state licenses
- Ophthalmology, MinnesotaPrimary
Ophthalmologists near Dr. Carpenter
Counts of ophthalmologists 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. Nathan D. Carpenter billed Medicare for 2,885 services in 2024
CMS data shows 2,885 Medicare services from Dr. Carpenter across 18 procedure codes in 2024, for 1,157 Medicare patients. Medicare paid $355,593 for them.
Dr. Carpenter's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,3752024: 1,3591%
- Office and hospital visits
- 2023: 9322024: 83910%
- Surgery
- 2023: 8032024: 67516%
- Imaging
- 2023: 02024: 12
Where Dr. Carpenter's Medicare services took place, 2024
- In an office2,33681%
- In a facility54919%
Dr. Carpenter compared with the Minnesota median for ophthalmologists, 2024
- Dr. Carpenter
- Minnesota median
- Medicare services
- 2,885vs 8103.6 times
- Medicare patients
- 1,157vs 3263.5 times
- Part D claims
- 2,327vs 5174.5 times
Medians across 364 ophthalmologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Carpenter'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. Carpenter and other ophthalmologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathan D. Carpenter treated 1,157 Medicare patients in 2024, average age 76
CMS counts 1,157 Medicare patients who saw Dr. Carpenter in 2024. The largest group is 75 to 84, with 467 patients. 71% of them have high cholesterol, and 67% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Carpenter's median patient age at 73, with 58% women.
Dr. Carpenter's Medicare patients by age, 2024
Dr. Carpenter's Medicare patients by sex, 2024
- Women70461%
- Men45339%
Chronic conditions among Dr. Carpenter's Medicare patients, 2024
- High cholesterol71%
- High blood pressure67%
- Arthritis33%
- Chronic kidney disease30%
- Diabetes26%
- Mood disorders21%
- Anxiety20%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Carpenter's 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
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan D. Carpenter wrote 2,443 Medicare Part D claims in 2024
In 2024, Dr. Carpenter wrote 2,443 Medicare Part D claims for 589 patients. 62% of them were for generic drugs. CMS names the drug for 2,327 of them, across 14 drugs with 11 or more claims each, at $93,806 in total drug cost. In 2023, CMS named 1,937 claims across 17 drugs.
Dr. Carpenter's Part D claims by kind of drug, 2024
- Generic1,517 claims62%
- Brand-name926 claims38%
Dr. Carpenter'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,9372024: 2,32720%
Drugs named by CMS: 14 in 2024, 17 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. Nathan D. Carpenter scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Carpenter for performance year 2024, reported as part of a group. Dr. Carpenter accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 584 procedures of cataract surgery by Dr. Carpenter, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Carpenter's MIPS scores, performance year 2024
- 92of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Carpenter ranks in Medicare procedure volume
- Cataract surgery
- 96th percentile584 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Nathan D. Carpenter received $1,539 in industry payments from 2016 to 2025
CMS Open Payments shows 45 general payments to Dr. Carpenter from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $698.
General payments to Dr. Carpenter by program year, 2016 to 2025
Companies that paid Dr. Carpenter 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. Nathan D. Carpenter graduated from University of North Dakota School of Medicine
Dr. Carpenter graduated from University of North Dakota School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nathan D. Carpenter'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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Nathan D. Carpenter
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. Nathan D. Carpenter's NPI number?
Dr. Nathan D. Carpenter's NPI number is 1083025548. It was assigned on May 17, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan D. Carpenter?
Dr. Nathan D. Carpenter is an ophthalmologist in Mankato, Minnesota. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Nathan D. Carpenter practice?
Dr. Carpenter practices at 1630 Adams St, Mankato, MN 56001. Dr. Carpenter's primary practice is Ophthalmology Associates of Mankato PA in Mankato, Minnesota. Dmand AI also links Dr. Carpenter to 3 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Nathan D. Carpenter's office phone number?
The practice phone on file for Dr. Carpenter is (507) 345-6151.
What is Dr. Nathan D. Carpenter's medical license number?
Dr. Carpenter holds Minnesota license 65076.
Which hospitals is Dr. Nathan D. Carpenter affiliated with?
Dr. Carpenter is affiliated with Mayo Clinic Health System in Mankato. Dmand AI links Dr. Carpenter to 3 more hospitals.
Does Dr. Nathan D. Carpenter accept Medicare?
Yes. CMS data shows Dr. Carpenter billed Medicare for 2,885 services in 2024, and Dr. Carpenter accepts Medicare assignment.
What is Dr. Nathan D. Carpenter's MIPS score?
Dr. Carpenter's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Nathan D. Carpenter see?
CMS counts 1,157 Medicare patients who saw Dr. Carpenter in 2024, with an average age of 76.
What services does Dr. Nathan D. Carpenter bill to Medicare?
In 2024, Dr. Carpenter's most billed Medicare services were eye exam or test (92014), surgery: eye (66984) and eye exam or test (92136).
Show 4 more questionsShow fewer questions
Where did Dr. Nathan D. Carpenter go to medical school?
Dr. Carpenter graduated from University of North Dakota School of Medicine in 2014.
What drugs does Dr. Nathan D. Carpenter prescribe most?
In 2024 Medicare Part D data, Dr. Carpenter's most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Ketorolac Tromethamine.
Has Dr. Nathan D. Carpenter received payments from drug or device companies?
CMS Open Payments shows $1,539 in general payments to Dr. Carpenter from 15 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Nathan D. Carpenter been practicing?
Dr. Carpenter graduated from medical school in 2014, 12 years ago.
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