NPPES file of Aug 9, 2026

Arlene Donowitz, MD

Internal Medicine Physician · Chattanooga, TN

Arlene Donowitz, MD is an internal medicine physician with a practice address in Chattanooga, Tennessee, and NPI 1548247109, issued on Dec 27, 2005. Check the license (Tennessee 18835, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548247109
Name
Arlene Donowitz
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
18835 TN
Self-reported in NPPES; status is on the state search
Practice location
605 Glenwood Dr, Chattanooga, TN 37404
Phone
(423) 629-7220
Enumerated
Dec 27, 2005
Record last updated
Aug 13, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(423) 629-4091
Medicare enrollment
Enrolled (PECOS I20100901000516); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 1980
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 605 Glenwood Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joseph Atkinson, MDInternal Medicine Physician1477530038
  2. Marcie Beasley, N.P.Family Nurse Practitioner1679779771
  3. Brooke Daniel, MDHematology & Oncology Physician1326096231
  4. Davey Daniel, MDHematology & Oncology Physician1942258751
  5. Karen Davenport, APN ,ACNP-BCNurse Practitioner1811260649
  6. Steven Dowlen, MDInternal Medicine Physician1841277431

Verify Arlene Donowitz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 18835
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.5 times the Medicare Part D claims of the average internal medicine physician in 2024

11,257 Medicare Part D claims for 749 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 66 claims were for opioids.

  1. Arlene Donowitz11,257
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium655 claims
  2. Atorvastatin Calcium585 claims
  3. Amlodipine Besylate582 claims
  4. Losartan Potassium382 claims
  5. Omeprazole377 claims
  6. Hydrochlorothiazide318 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 94.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $885.48

49 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Arlene Donowitz$885.48
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Memorial Health Partners Foundation, IncChattanooga, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Arlene Donowitz among 2,596 internal medicine physician records in Tennessee

Arlene Donowitz, MD is one of 2,596 internal medicine physician records with a practice address in Tennessee. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 85% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1980 · median 2003 among the 1,705 with a school on file
  • Record last updated2008 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

192 internal medicine physician records list a practice address in Chattanooga

They are 192 of the 7,377 NPPES records with a practice address in Chattanooga, and 2,596 internal medicine physician records in Tennessee.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Bosshardt, MDChattanooga, TN 374041932192994
  2. Collin Cherry, MDChattanooga, TN 374041659375491
  3. Charles Crump, MDChattanooga, TN 374041093704744
  4. Annesofie Dubeck-Brooks, MDChattanooga, TN 374041790774610
  5. Radian Florea, M.D.Chattanooga, TN 374041285627265
  6. Cristina Florea, MDChattanooga, TN 374041497730949
  7. Selmon Franklin, MDChattanooga, TN 374041841289501
  8. Richard Gusso, M.D.Chattanooga, TN 374041780673434

Common questions

What is Arlene Donowitz, MD's NPI number?

Arlene Donowitz, MD's National Provider Identifier (NPI) is 1548247109, issued on Dec 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Arlene Donowitz, MD located?

The NPPES record lists a practice address at 605 Glenwood Dr, Chattanooga, TN, 37404. Phone: (423) 629-7220. Providers update this record themselves, so call before visiting.

How can I verify Arlene Donowitz, MD's license?

NPPES lists Tennessee license number 18835, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Arlene Donowitz, MD prescribe under Medicare Part D?

In 2024, Arlene Donowitz, MD had 11,257 Medicare Part D claims for 749 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Arlene Donowitz, MD's MIPS final score?

The 2023 MIPS final score is 94.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.