Chamberlain I. Obialo, MD
Nephrology Physician · Atlanta, GA
Chamberlain I. Obialo, MD is a nephrology physician with a practice address in Atlanta, Georgia, and NPI 1881694529, issued on Jul 22, 2005. Check the license (Georgia 038321, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Chamberlain I. Obialo
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 038321 GA
Self-reported in NPPES; status is on the state search - Practice location
- 1800 Howell Mill RD, Atlanta, GA 30318
- Phone
- (404) 756-1480
- Enumerated
- Jul 22, 2005
- Record last updated
- May 28, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 00061874U GA
- Medicare enrollment
- Enrolled (PECOS I20101208001328); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 417 in Georgia → Look up another NPI →
Also registered at 1800 Howell Mill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vanessa Niles, MDObstetrics & Gynecology Physician1922199470
Verify Chamberlain I. Obialo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 038321Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average nephrology physician in 2024
616 Medicare Part D claims for 118 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Calcitriol57 claims
- Sevelamer Carbonate55 claims
- Amlodipine Besylate46 claims
- Torsemide36 claims
- Prosol33 claims
- Farxiga28 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.
Industry payments in 2024: $131.66
7 payments; by number, the most common kind was education; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Chamberlain I. Obialo among 417 nephrology physician records in Georgia
Chamberlain I. Obialo, MD is one of 417 nephrology physician records with a practice address in Georgia. 91% 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, 84% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated1979 · median 2001 among the 343 with a school on file
- Record last updated2015 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Georgia
There are 417 nephrology physician records in Georgia.
All 417 in Georgia → Every provider in Atlanta → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Raphael Loutoby, MDAtlanta, GA 303181194820274
- Dwarka Rathi, MDBrookhaven, GA 303191528077732
- James Bailey, M.D.Atlanta, GA 303221508897877
- Hui Cai, M.D.Atlanta, GA 303221740248822
- Sharon Graves, M.D.Atlanta, GA 303221669482931
- Antonio Guasch, M.D.Atlanta, GA 303221508876509
- Janice Lea, M.D.Atlanta, GA 303221750391769
- Koba LomashviliAtlanta, GA 303221881639003
Common questions
What is Chamberlain I. Obialo, MD's NPI number?
Chamberlain I. Obialo, MD's National Provider Identifier (NPI) is 1881694529, issued on Jul 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Chamberlain I. Obialo, MD located?
The NPPES record lists a practice address at 1800 Howell Mill RD, Atlanta, GA, 30318. Phone: (404) 756-1480. Providers update this record themselves, so call before visiting.
How can I verify Chamberlain I. Obialo, MD's license?
NPPES lists Georgia license number 038321, 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 Chamberlain I. Obialo, MD prescribe under Medicare Part D?
In 2024, Chamberlain I. Obialo, MD had 616 Medicare Part D claims for 118 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
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.