Dr. Nicholas Litwin, DO
- Medicare services, 2023
- 1,012
- Part D claims, 2024
- 11
- Hospital affiliations
- 2
- Industry payments
- $205
- Medical groups
- 6
- Practice address
- 2525 Desales Ave, Chattanooga, TN 37404
- Practice phone
- Call (423) 495-2525
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Litwin's professional email, personal email and mobile number
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Dr. Nicholas Litwin is an internist in Chattanooga, Tennessee
Dr. Litwin practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health.
Dr. Litwin's NPI, 1679993711, was assigned on April 16, 2014. Dr. Litwin holds Tennessee license 4365.
- NPI
- 1679993711NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406157874
- NPI enumeration date
- April 16, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (423) 495-2525
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicholas Litwin practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee
Dr. Litwin's primary practice is CommonSpirit - Memorial Hospital - Chattanooga, at 2525 Desales Ave, Chattanooga, TN 37404 in Hamilton County. The practice phone is (423) 495-2525.
- CommonSpirit - Memorial Hospital - Chattanooga2525 Desales Ave, Chattanooga, TN 37404 · Hamilton CountyPhone(423) 495-2525
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicholas Litwin is affiliated with 2 sites of care and 6 medical groups
Dr. Litwin's primary practice is CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health. Dr. Litwin is also affiliated with Rhea Medical Center. The medical group on file is Southeastern Physician Services PC. Dmand AI also links Dr. Litwin to 5 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nicholas Litwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Litwin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CommonSpirit - Memorial Hospital - Chattanooga | Available with a free account |
| +1 more site and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicholas Litwin is one of 2,427 internists in Tennessee
Internal medicine is Dr. Litwin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Litwin's licenses on file in 2 states: Tennessee and Virginia.
Specialties and state licenses
- Internal medicine, TennesseePrimary
- Virginia license
Internists near Dr. Litwin
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. Nicholas Litwin billed Medicare for 1,012 services in 2023
CMS data shows 1,012 Medicare services from Dr. Litwin across 5 procedure codes in 2023. Medicare paid $78,970 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Litwin's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 9022023: 1,01212%
Dr. Litwin compared with the Tennessee median for internists, 2023
- Dr. Litwin
- Tennessee median
- Medicare services
- 1,012vs 67151% above
- Part D claims
- 162vs 33451% below
Medians across 2,462 internists in Tennessee with Dmand AI profiles that report each measure.
Dr. Litwin's most billed Medicare procedure codes, 2023
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. Litwin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Litwin and other internists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicholas Litwin's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Litwin's median patient age at 73, with 57% women.
Dr. Litwin'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
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Nicholas Litwin wrote 11 Medicare Part D claims in 2024
In 2024, Dr. Litwin wrote 11 Medicare Part D claims. They cover 11 drugs, with $10,994 in total drug cost. In 2022, CMS named 133 claims across 9 drugs.
Dr. Litwin's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 1332023: 16222%
Drugs named by CMS: 11 in 2023, 9 in 2022.
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
How Dr. Nicholas Litwin takes part in Medicare
Dr. Litwin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nicholas Litwin received $205 in industry payments from 2016 to 2017
CMS Open Payments shows 3 general payments to Dr. Litwin from 2 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $193.
General payments to Dr. Litwin by program year, 2016 to 2017
Companies that paid Dr. Litwin the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas Litwin'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 Data |
| 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) |
| 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. Nicholas Litwin
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. Nicholas Litwin's NPI number?
Dr. Nicholas Litwin's NPI number is 1679993711. It was assigned on April 16, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas Litwin?
Dr. Nicholas Litwin is an internist in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nicholas Litwin practice?
Dr. Litwin practices at 2525 Desales Ave, Chattanooga, TN 37404. Dr. Litwin's primary practice is CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee, part of CommonSpirit Health. Dmand AI also links Dr. Litwin to 5 medical groups.
What is Dr. Nicholas Litwin's office phone number?
The practice phone on file for Dr. Litwin is (423) 495-2525.
What is Dr. Nicholas Litwin's medical license number?
Dr. Litwin holds Tennessee license 4365, one of the licenses on file in 2 states.
Which states has Dr. Nicholas Litwin been licensed in?
Dmand AI has state licenses on file for Dr. Litwin in Tennessee and Virginia.
Which hospitals is Dr. Nicholas Litwin affiliated with?
Dr. Litwin practices at CommonSpirit - Memorial Hospital - Chattanooga in Chattanooga, Tennessee. Dr. Litwin is also affiliated with Rhea Medical Center.
What medical group is Dr. Nicholas Litwin part of?
Dr. Litwin is linked to Southeastern Physician Services PC. Dmand AI links Dr. Litwin to 5 more medical groups.
Does Dr. Nicholas Litwin accept Medicare?
Yes. CMS data shows Dr. Litwin billed Medicare for 1,012 services in 2023, and Dr. Litwin accepts Medicare assignment.
What services does Dr. Nicholas Litwin bill to Medicare?
In 2023, Dr. Litwin's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
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What drugs does Dr. Nicholas Litwin prescribe most?
In 2023 Medicare Part D data, Dr. Litwin's most prescribed drugs by claims were Famotidine, Eliquis and Amlodipine Besylate.
Has Dr. Nicholas Litwin received payments from drug or device companies?
CMS Open Payments shows $205 in general payments to Dr. Litwin from 2 companies from 2016 to 2017. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Nicholas Litwin been practicing?
Dr. Litwin graduated from medical school in 2014, 12 years ago.
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