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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CHAMBERLAIN I OBIALO MD
NPI 1881694529
Internal Medicine - Nephrology in Sandy Springs, GA

Active since July 22, 2005PECOS EnrolledAccepts Medicare Assignment
5550 CLAIRE ROSE LN, SANDY SPRINGS, GA 30327(404) 228-2211(404) 282-4627 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Chamberlain I Obialo Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHAMBERLAIN I OBIALO MD (NPI 1881694529) is an individual nephrology provider in Sandy Springs, Georgia, licensed in Georgia (038321) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Emory University Hospital Midtown, and is a graduate of Other (1979).

NPPES Registry Identity

NPI1881694529
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameCHAMBERLAIN I OBIALOCredential: MD
Location Address5550 CLAIRE ROSE LNSandy Springs, GA 30327-4829
Mailing Address228 Sandy Springs Pl Ste D483Sandy Springs, GA 30328-3812 · (404) 228-2211 · Fax (404) 282-4627
Phone(404) 228-2211
Fax(404) 282-4627
Sole ProprietorNo
Medical School CMSOtherGraduated 1979
Enumeration DateJuly 22, 2005
Last NPPES UpdateSeptember 10, 2026
NPPES CertifiedSeptember 10, 2026
✔ NPI 1881694529 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in GA · 038321
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License 038321 (GA)
5550 CLAIRE ROSE LN, Sandy Springs, GA 30327
Open in Google Maps ↗

Other Identifiers 1

Medicaid00061874UGA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Chamberlain I Obialo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9830386465
PECOS Enrollment IDI20101208001328
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Chamberlain Obialo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Miango Group LLC
1.5 mi
Nephrology
227 SANDY SPRINGS PL STE D-483
Sandy Springs, GA 30328
  • Reassigned Medicare billing, Georgia enrollment
NPI 1447922406 (404) 459-9103
Morehouse Healthcare, Inc.
7.1 mi
Cardiovascular Disease
1800 HOWELL MILL RD NW STE 275
Atlanta, GA 30318
  • Reassigned Medicare billing, Georgia enrollment
  • 322 clinicians in this Medicare group
NPI 1801832324 (404) 752-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
118 services15 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
61 services15 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
52 services11 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
17 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Emory University Hospital Midtown

Acute Care Hospitals · Atlanta, GA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110078
Location550 Peachtree Street, NEAtlanta, GA 30308 · Fulton County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30327 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.64 typical visit price
range $56.84 – $172.43
Typical copayment $32.66 (range $14.21 – $43.10)
Most-billed visit code 99204
Established Patient
$100.20 typical visit price
range $18.22 – $140.40
Typical copayment $25.05 (range $4.55 – $35.10)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Chamberlain Obialo's NPI number?

The NPI number for Chamberlain Obialo is 1881694529. It was assigned to this individual provider in the NPPES registry on July 22, 2005.

Where is Chamberlain Obialo located?

Chamberlain Obialo practices at 5550 Claire Rose Ln, Sandy Springs, GA 30327. The listed phone number is (404) 228-2211.

What is Chamberlain Obialo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Chamberlain Obialo enrolled in Medicare?

Yes. Chamberlain Obialo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Chamberlain Obialo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chamberlain Obialo reassigns Medicare benefits to 2 organizations: Miango Group LLC (Sandy Springs, GA) and Morehouse Healthcare, Inc. (Atlanta, GA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Chamberlain Obialo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Chamberlain Obialo accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Chamberlain Obialo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Chamberlain Obialo affiliated with any hospitals?

According to CMS data, Chamberlain Obialo is affiliated with Emory University Hospital Midtown.

When was this NPI record last updated?

The NPPES record for Chamberlain Obialo was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.