Dr. Nathan Klammer, MD
- Medicare services, 2024
- 225
- Medicare patients, 2024
- 161
- Part D claims, 2024
- 172
- MIPS score, 2024
- 96
- Hospital affiliations
- 6
- Practice address
- 1202 N Muskogee Place, Claremore, OK 74017
- Practice phone
- Call (918) 341-2556
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Klammer's professional email, personal email and mobile number
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Dr. Nathan Klammer is an emergency medicine physician in Claremore, Oklahoma
Dr. Klammer practices at Hillcrest Hospital Claremore in Claremore, Oklahoma, part of Ardent Health.
Dr. Klammer's NPI, 1104405869, was assigned on April 7, 2021. Dr. Klammer graduated from University of Arkansas College of Medicine in 2021. Dr. Klammer holds Oklahoma license 42931.
- NPI
- 1104405869NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668820614
- NPI enumeration date
- April 7, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (918) 341-2556
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan Klammer practices at Hillcrest Hospital Claremore in Claremore, Oklahoma
Dr. Klammer's primary practice is Hillcrest Hospital Claremore, at 1202 N Muskogee Place, Claremore, OK 74017 in Rogers County. The practice phone is (918) 341-2556.
- Hillcrest Hospital Claremore1202 N Muskogee Place, Claremore, OK 74017 · Rogers CountyPhone(918) 341-2556
Source: Dmand AI Affiliation Data
Dr. Nathan Klammer is affiliated with 7 sites of care and 4 medical groups
Dr. Klammer's primary practice is Hillcrest Hospital Claremore in Claremore, Oklahoma, part of Ardent Health. Dr. Klammer is also affiliated with Hillcrest Hospital South. The medical group on file is Green Country Emergency Physicians. Dmand AI also links Dr. Klammer to 4 more hospitals, 3 medical groups and 1 group practice or clinic, 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. Nathan Klammer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klammer practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hillcrest Hospital Claremore | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathan Klammer is one of 695 emergency medicine physicians in Oklahoma
Emergency medicine is Dr. Klammer's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Klammer is licensed in Oklahoma.
Specialties and state licenses
- Emergency medicine, OklahomaPrimary
Emergency medicine physicians near Dr. Klammer
Counts of emergency medicine physicians 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 Klammer billed Medicare for 225 services in 2024
CMS data shows 225 Medicare services from Dr. Klammer across 4 procedure codes in 2024, for 161 Medicare patients. Medicare paid $16,374 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Klammer's Medicare services by type, 2024
- Office and hospital visits148
- Tests and treatments77
Dr. Klammer compared with the Oklahoma median for emergency medicine physicians, 2024
- Dr. Klammer
- Oklahoma median
- Medicare services
- 225vs 32431% below
- Medicare patients
- 161vs 29445% below
- Part D claims
- 80vs 889% below
Medians across 669 emergency medicine physicians in Oklahoma with Dmand AI profiles that report each measure.
Dr. Klammer'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. Nathan Klammer treated 161 Medicare patients in 2024, average age 72
CMS counts 161 Medicare patients who saw Dr. Klammer in 2024. The largest group is 75 to 84, with 53 patients. 75% of them have high blood pressure, and 65% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.66, 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. Klammer's median patient age at 55, with 60% women.
Dr. Klammer's Medicare patients by age, 2024
Dr. Klammer's Medicare patients by sex, 2024
- Women8553%
- Men7647%
Chronic conditions among Dr. Klammer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol65%
- Arthritis52%
- Ischemic heart disease40%
- Mood disorders39%
- Depression37%
- Anxiety36%
- Diabetes35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Klammer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan Klammer wrote 172 Medicare Part D claims in 2024
In 2024, Dr. Klammer wrote 172 Medicare Part D claims for 128 patients. 95% of them were for generic drugs. CMS names the drug for 80 of them, across 4 drugs with 11 or more claims each, at $385 in total drug cost.
Dr. Klammer's Part D claims by kind of drug, 2024
- Generic164 claims95%
- Brand-name and other8 claims5%
Dr. Klammer'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. Klammer's Part D claims, 2024
- Opioids16%28 of 172 claims
- Antibiotics35%61 of 172 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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 Klammer scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Klammer for performance year 2024, reported as part of a group. Dr. Klammer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Klammer's MIPS scores, performance year 2024
- 96of 100Final score
- 81.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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. Nathan Klammer graduated from University of Arkansas College of Medicine
Dr. Klammer graduated from University of Arkansas College of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nathan Klammer'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)Clinician Public Reporting: Overall MIPS Performance (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 Klammer
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 Klammer's NPI number?
Dr. Nathan Klammer's NPI number is 1104405869. It was assigned on April 7, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan Klammer?
Dr. Nathan Klammer is an emergency medicine physician in Claremore, Oklahoma. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Nathan Klammer practice?
Dr. Klammer practices at 1202 N Muskogee Place, Claremore, OK 74017. Dr. Klammer's primary practice is Hillcrest Hospital Claremore in Claremore, Oklahoma, part of Ardent Health. Dmand AI also links Dr. Klammer to 4 hospitals, 3 medical groups and 1 group practice or clinic.
What is Dr. Nathan Klammer's office phone number?
The practice phone on file for Dr. Klammer is (918) 341-2556.
What is Dr. Nathan Klammer's medical license number?
Dr. Klammer holds Oklahoma license 42931.
Which hospitals is Dr. Nathan Klammer affiliated with?
Dr. Klammer practices at Hillcrest Hospital Claremore in Claremore, Oklahoma. Dr. Klammer is also affiliated with Hillcrest Hospital South. Dmand AI links Dr. Klammer to 4 more hospitals.
What medical group is Dr. Nathan Klammer part of?
Dr. Klammer is linked to Green Country Emergency Physicians. Dmand AI links Dr. Klammer to 3 more medical groups.
Does Dr. Nathan Klammer accept Medicare?
Yes. CMS data shows Dr. Klammer billed Medicare for 225 services in 2024, and Dr. Klammer accepts Medicare assignment.
What is Dr. Nathan Klammer's MIPS score?
Dr. Klammer's MIPS final score for performance year 2024 is 96 out of 100, reported as part of a group.
How many Medicare patients does Dr. Nathan Klammer see?
CMS counts 161 Medicare patients who saw Dr. Klammer in 2024, with an average age of 72.
Show 4 more questionsShow fewer questions
What services does Dr. Nathan Klammer bill to Medicare?
In 2024, Dr. Klammer's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Nathan Klammer go to medical school?
Dr. Klammer graduated from University of Arkansas College of Medicine in 2021.
What drugs does Dr. Nathan Klammer prescribe most?
In 2024 Medicare Part D data, Dr. Klammer's most prescribed drugs by claims were Cephalexin, Hydrocodone-Acetaminophen and Prednisone.
How long has Dr. Nathan Klammer been practicing?
Dr. Klammer graduated from medical school in 2021, 5 years ago.
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