NPPES file of Aug 9, 2026

Joan E. Cain, MD

Hematology & Oncology Physician · Atlanta, GA

Joan E. Cain, MD is a hematology & oncology physician with a practice address in Atlanta, Georgia, and NPI 1043495732, issued on Jan 1, 2008. Check the license (Georgia 054598, as entered in NPPES) on the Georgia Composite Medical Board; 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
1043495732
Name
Joan E. Cain
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
054598 GA
Self-reported in NPPES; status is on the state search
Practice location
1364 Clifton RD NE, Atlanta, GA 30322
Phone
(404) 686-1000
Enumerated
Jan 1, 2008
Record last updated
Jan 1, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040826000583); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 2001
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 1364 Clifton RD NE

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

  1. Amena AbbasiStudent in an Organized Health Care Education/Training Program1154016871
  2. Awab AbdalhaiAnatomic Pathology & Clinical Pathology Physician1356018030
  3. Omar AbdallaStudent in an Organized Health Care Education/Training Program1912893132
  4. Wassim Abdallah, MDInfectious Disease Physician1780178889
  5. Mohamed Abdelkhalek, MBBCH,MSC,FRCS(CTH)Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1225950074
  6. Olayinka Abiodun-Ojo, MD, MPHStudent in an Organized Health Care Education/Training Program1740867621

Verify Joan E. Cain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 054598
    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 Georgia 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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62% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

332 Medicare Part D claims for 98 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 27 claims were for opioids.

  1. Joan Cain332
  2. Specialty average877

Most prescribed

  1. Anastrozole38 claims
  2. Letrozole28 claims
  3. Dexamethasone17 claims
  4. Ibandronate Sodium16 claims
  5. Raloxifene Hcl16 claims
  6. Revlimid15 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 practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score78.5
  2. Costout of 100 · 30%75.5
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $741.01

34 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joan Cain$741.01
  2. Specialty average$7,481.41

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. Nsh Cancer Institute Professional Services G LLCAtlanta, GA

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

Joan E. Cain among 396 hematology & oncology physician records in Georgia

Joan E. Cain, MD is one of 396 hematology & oncology physician records with a practice address in Georgia. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 61% of them.

  • NPI issued2008 · 61% of these records are older, 31% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2001 · median 2002 among the 300 with a school on file
  • Record last updated2008 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Georgia

There are 396 hematology & oncology physician records in Georgia.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. William Blum, M.D.Atlanta, GA 303221013922863
  2. Kristie Blum, M.D.Atlanta, GA 303221811902679
  3. Otis Brawley, M.D.Atlanta, GA 303221912915109
  4. Jonathon Cohen, M.D.Atlanta, GA 303221902003403
  5. Ann Haight, MDAtlanta, GA 303221871665265
  6. Wayne Harris, MDAtlanta, GA 303221023055779
  7. Leonard Heffner, M.D.Atlanta, GA 303221780791533
  8. Omer Kucuk, MDAtlanta, GA 303221255388948

Common questions

What is Joan E. Cain, MD's NPI number?

Joan E. Cain, MD's National Provider Identifier (NPI) is 1043495732, issued on Jan 1, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Joan E. Cain, MD located?

The NPPES record lists a practice address at 1364 Clifton RD NE, Atlanta, GA, 30322. Phone: (404) 686-1000. Providers update this record themselves, so call before visiting.

How can I verify Joan E. Cain, MD's license?

NPPES lists Georgia license number 054598, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Joan E. Cain, MD prescribe under Medicare Part D?

In 2024, Joan E. Cain, MD had 332 Medicare Part D claims for 98 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Joan E. Cain, MD's MIPS final score?

The 2023 MIPS final score is 94.6 of 100, reported for the practice group. 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.