Dr. Nathan E. Chamberlain, MD
- Medicare services, 2024
- 8,127
- Medicare patients, 2024
- 1,196
- Part D claims, 2024
- 1,057
- MIPS score, 2024
- 95
- Hospital affiliations
- 3
- Practice address
- 251 N Lyerly St, Chattanooga, TN 37404
- Practice phone
- Call (423) 826-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yium, Shenouda & Miller Ptrshp
Chattanooga, Tennessee
Find Dr. Chamberlain's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Nathan E. Chamberlain is a nephrologist in Chattanooga, Tennessee
Dr. Chamberlain practices at Yium, Shenouda & Miller Ptrshp in Chattanooga, Tennessee.
Dr. Chamberlain's NPI, 1134126246, was assigned on July 5, 2005. Dr. Chamberlain graduated from University of Alabama School of Medicine in 1996. Dr. Chamberlain holds Tennessee license 29919.
- NPI
- 1134126246NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214012038
- NPI enumeration date
- July 5, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (423) 826-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan E. Chamberlain practices at Yium, Shenouda & Miller Ptrshp in Chattanooga, Tennessee
Dr. Chamberlain's primary practice is Yium, Shenouda & Miller Ptrshp, at 251 N Lyerly St, Chattanooga, TN 37404 in Hamilton County. The practice phone is (423) 826-8000.
- Yium, Shenouda & Miller Ptrshp251 N Lyerly St, Chattanooga, TN 37404 · Hamilton CountyPhone(423) 826-8000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nathan E. Chamberlain is affiliated with 6 sites of care and 1 medical group
Dr. Chamberlain's primary practice is Yium, Shenouda & Miller Ptrshp in Chattanooga, Tennessee. Dr. Chamberlain is also affiliated with Erlanger Baroness Hospital. The medical group on file is Nephrology Associates - Chattanooga. Dmand AI also links Dr. Chamberlain to 2 more hospitals, 1 dialysis center and 1 group practice or clinic, 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 E. Chamberlain's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chamberlain practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yium, Shenouda & Miller Ptrshp | 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. Nathan E. Chamberlain is one of 230 nephrologists in Tennessee
Nephrology is Dr. Chamberlain's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Chamberlain's licenses on file in 2 states: Tennessee and Georgia.
Specialties and state licenses
- Nephrology, TennesseePrimary
- Georgia license
Nephrologists near Dr. Chamberlain
Counts of nephrologists 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 E. Chamberlain billed Medicare for 8,127 services in 2024
CMS data shows 8,127 Medicare services from Dr. Chamberlain across 39 procedure codes in 2024, for 1,196 Medicare patients. Medicare paid $394,022 for them.
Dr. Chamberlain's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 3,4952024: 3,08612%
- Office and hospital visits
- 2023: 1,6832024: 2,81067%
- Tests and treatments
- 2023: 8212024: 69515%
- Imaging
- 2023: 4232024: 61445%
- Other services
- 2023: 1642024: 532224%
- Surgery
- 2023: 4232024: 3908%
Where Dr. Chamberlain's Medicare services took place, 2024
- In an office7,16588%
- In a facility96212%
Dr. Chamberlain compared with the Tennessee median for nephrologists, 2024
- Dr. Chamberlain
- Tennessee median
- Medicare services
- 8,127vs 1,1876.8 times
- Medicare patients
- 1,196vs 3733.2 times
- Part D claims
- 863vs 853Close to median
Medians across 228 nephrologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Chamberlain'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. Chamberlain and other nephrologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathan E. Chamberlain treated 1,196 Medicare patients in 2024, average age 75
CMS counts 1,196 Medicare patients who saw Dr. Chamberlain in 2024. The largest group is 75 to 84, with 509 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 14% are also on Medicaid. Their average risk score is 2.62, 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. Chamberlain's median patient age at 73, with 52% women.
Dr. Chamberlain's Medicare patients by age, 2024
Dr. Chamberlain's Medicare patients by sex, 2024
- Women62452%
- Men57248%
Chronic conditions among Dr. Chamberlain's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes57%
- Arthritis56%
- Ischemic heart disease49%
- Heart failure38%
- Atrial fibrillation33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chamberlain'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
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan E. Chamberlain wrote 1,057 Medicare Part D claims in 2024
In 2024, Dr. Chamberlain wrote 1,057 Medicare Part D claims for 196 patients. 88% of them were for generic drugs. CMS names the drug for 863 of them, across 31 drugs with 11 or more claims each, at $45,945 in total drug cost. In 2023, CMS named 730 claims across 24 drugs.
Dr. Chamberlain's Part D claims by kind of drug, 2024
- Generic926 claims88%
- Brand-name131 claims12%
Dr. Chamberlain'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. Chamberlain's Part D claims, 2024
- Antibiotics4%39 of 1,057 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: 7302024: 86318%
Drugs named by CMS: 31 in 2024, 24 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 E. Chamberlain scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Chamberlain for performance year 2024, reported as part of a group. Dr. Chamberlain accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Chamberlain's MIPS scores, performance year 2024
- 95of 100Final score
- 81.3of 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 E. Chamberlain received $1,602 in industry payments from 2016 to 2025
CMS Open Payments shows 93 general payments to Dr. Chamberlain from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $346.
General payments to Dr. Chamberlain by program year, 2016 to 2025
General payments to Dr. Chamberlain by kind, 2016 to 2025
- Food and beverage$1,50594%
- Education$986%
Companies that paid Dr. Chamberlain 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 E. Chamberlain graduated from University of Alabama School of Medicine
Dr. Chamberlain graduated from University of Alabama School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nathan E. Chamberlain'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) |
| 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 E. Chamberlain
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 E. Chamberlain's NPI number?
Dr. Nathan E. Chamberlain's NPI number is 1134126246. It was assigned on July 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan E. Chamberlain?
Dr. Nathan E. Chamberlain is a nephrologist in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Nathan E. Chamberlain practice?
Dr. Chamberlain practices at 251 N Lyerly St, Chattanooga, TN 37404. Dr. Chamberlain's primary practice is Yium, Shenouda & Miller Ptrshp in Chattanooga, Tennessee. Dmand AI also links Dr. Chamberlain to 2 hospitals, 1 dialysis center and 1 group practice or clinic.
What is Dr. Nathan E. Chamberlain's office phone number?
The practice phone on file for Dr. Chamberlain is (423) 826-8000.
What is Dr. Nathan E. Chamberlain's medical license number?
Dr. Chamberlain holds Tennessee license 29919, one of the licenses on file in 2 states.
Which states has Dr. Nathan E. Chamberlain been licensed in?
Dmand AI has state licenses on file for Dr. Chamberlain in Tennessee and Georgia.
Which hospitals is Dr. Nathan E. Chamberlain affiliated with?
Dr. Chamberlain is affiliated with Erlanger Baroness Hospital. Dmand AI links Dr. Chamberlain to 2 more hospitals.
What medical group is Dr. Nathan E. Chamberlain part of?
Dr. Chamberlain is linked to Nephrology Associates - Chattanooga.
Does Dr. Nathan E. Chamberlain accept Medicare?
Yes. CMS data shows Dr. Chamberlain billed Medicare for 8,127 services in 2024, and Dr. Chamberlain accepts Medicare assignment.
What is Dr. Nathan E. Chamberlain's MIPS score?
Dr. Chamberlain's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Nathan E. Chamberlain see?
CMS counts 1,196 Medicare patients who saw Dr. Chamberlain in 2024, with an average age of 75.
What services does Dr. Nathan E. Chamberlain bill to Medicare?
In 2024, Dr. Chamberlain's most billed Medicare services were hospital inpatient care (99233), ultrasound (76770) and lab and pathology test (80053).
Where did Dr. Nathan E. Chamberlain go to medical school?
Dr. Chamberlain graduated from University of Alabama School of Medicine in 1996.
What drugs does Dr. Nathan E. Chamberlain prescribe most?
In 2024 Medicare Part D data, Dr. Chamberlain's most prescribed drugs by claims were Furosemide, Losartan Potassium and Amlodipine Besylate.
Has Dr. Nathan E. Chamberlain received payments from drug or device companies?
CMS Open Payments shows $1,602 in general payments to Dr. Chamberlain from 27 companies from 2016 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Nathan E. Chamberlain been practicing?
Dr. Chamberlain graduated from medical school in 1996, 30 years ago.
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