DR. OLUWASEYI SEGUN BALASIRE (M.D.) – Hospitalist Physician, NPI 1003235243

DR. OLUWASEYI SEGUN BALASIRE (M.D.) is a healthcare provider. based in Nashville, Tennessee. specializing in INTERNAL MEDICINE, HOSPITALIST. They hold the professional credentials M.D.. They hold a License No. 1118626 (CA). The NPI Number for DR. OLUWASEYI SEGUN BALASIRE (M.D.) is 1003235243

Main info

Male
17 Years Of Experience
Accepts Medicare Assignment
Name
DR. OLUWASEYI SEGUN BALASIRE (M.D.)
NPI
1003235243
Phone
(615) 341-4000
Address
1818 Albion St
Enumeration Date
15 April 2014
Last Update Date
7 March 2023

Doctor Profile

Medical School Name
OTHER
Secondary Phone
5108696883
Graduation Year
2009 (17 years ago)
PAC ID
5799045316
Group Practice PAC ID
4284538778
Professional Enrollment ID
I20190808001082
Address ID
CA946093108OA350XXAVEX303
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience56
Completeness75
Years active:12State licenses:3Digital endpointsOther names

3,527 INTERNAL MEDICINE in TN

Provider Addresses for DR. OLUWASEYI SEGUN BALASIRE (M.D.)

  • 1818 Albion St

    Nashville, TN 372082918

    Phone: (615) 341-4000

    Type: Location

  • 900 E Oak Hill Ave

    Knoxville, TN 379174505

    Phone: (865) 545-8000

    Type: Location

  • 400 CHANEY RD APT 307

    SMYRNA, TN 371672650

    Phone: (813) 389-8614

    Type: Mailing

  • 20103 LAKE CHABOT RD

    CASTRO VALLEY, CA 945465305

    Phone: (510) 727-3256

    Fax: (510) 727-3107

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $16.

Total Amount is formed as General ($16) + Research ($0) + Ownership ($0) = $16.

Last reported payment date: 2023-10-19 • Largest payer in this snapshot: Exact Sciences Corporation ($16).

Total Amount

$16

General + Research + Ownership

Payments

1

Total payment records

General Amount

$16

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-10-19

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2021-12-22

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 3 Medicare enrollment records; no due dates published yet.

Enrollment records

3

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20180130002168IInternal MedicineTNTBD
I20190808001082IInternal MedicineCATBD
I20211222000859IInternal MedicineTXTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes11844$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes10199$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes9835$0
99239Hospital discharge day management, more than 30 minutes3736$0
View full utilization report →

Insurance plans in this area (ZIP 37208)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4284538778View full group profile
NameSpecialtyState
D E R M A T O L O G YCA
A L L E R G Y/ I M M U N O L O G YCA
-CA
Hospitalist, Obstetrics/GynecologyCA
O B S T E T R I C S/ G Y N E C O L O G YOR
-CA
-CA
-CA
-CA
A N E S T H E S I O L O G YCA

Reviews

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Frequently asked questions

How is DR. OLUWASEYI SEGUN BALASIRE (M.D.) identified in CMS data?
CMS-hosted NPPES data lists DR. OLUWASEYI SEGUN BALASIRE (M.D.) with NPI 1003235243.
Can I rely on DR. OLUWASEYI SEGUN BALASIRE (M.D.) being an active provider?
As of the registry snapshot, DR. OLUWASEYI SEGUN BALASIRE (M.D.) is marked active.
What taxonomy line describes DR. OLUWASEYI SEGUN BALASIRE (M.D.)?
For research purposes, treat DR. OLUWASEYI SEGUN BALASIRE (M.D.) as Hospitalist Physician in this dataset. Clinical services aligned with this taxonomy classification.
What area does DR. OLUWASEYI SEGUN BALASIRE (M.D.) serve?
DR. OLUWASEYI SEGUN BALASIRE (M.D.)'s listing highlights Nashville, Tennessee; more addresses can appear in NPPES.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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