Nathaniel A Keller, MD - Medicare Psychiatry in Orlando, FL

Nathaniel A Keller, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Orlando, Florida. He graduated from medical school in 1996 and has 28 years of diverse experience with area of expertise as Psychiatry. He is a member of the group practice Orlando Health Medical Group Inc and his current practice location is 52 W Underwood St, Orlando, Florida. You can reach out to his office (for appointments etc.) via phone at (407) 262-2220.

Nathaniel A Keller is licensed to practice in Florida (license number ME87905) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1144411844.

Contact Information

Nathaniel A Keller, MD
52 W Underwood St,
Orlando, FL 32806-1110
(407) 262-2220
(407) 834-5011

Map and Direction




Physician's Profile

Full NameNathaniel A Keller
GenderMale
SpecialityPsychiatry
Experience28 Years
Location52 W Underwood St, Orlando, Florida
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Nathaniel A Keller graduated from medical school in 1996
  NPI Data:
  • NPI Number: 1144411844
  • Provider Enumeration Date: 08/07/2007
  • Last Update Date: 10/29/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 6406810043
  • Enrollment ID: I20041116000311

Medical Identifiers

Medical identifiers for Nathaniel A Keller such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144411844NPI-NPPES
016613800MedicaidFL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry ME87905 (Florida)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Orlando HealthOrlando, FLHospital
Orlando Health South Lake HospitalClermont, FLHospital
St Cloud Regional Medical CenterSaint cloud, FLHospital

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Nathaniel A Keller allows following entities to bill medicare on his behalf.
Entity NameOrlando Health Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669429577
PECOS PAC ID: 9537059084
Enrollment ID: O20040318000044
Entity NameNathaniel Keller Md Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245306810
PECOS PAC ID: 8325002959
Enrollment ID: O20041115000305

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Nathaniel A Keller is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Nathaniel A Keller, MD
52 W Underwood St,
Orlando, FL 32806-1110

Ph: (407) 262-2220
Nathaniel A Keller, MD
52 W Underwood St,
Orlando, FL 32806-1110

Ph: (407) 262-2220

Reviews and Comments


Psychiatry & Neurology Doctors in Orlando, FL

Dr. Manuel Ramon Mota-castillo, MD
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Luis E Bello Espinosa, M.D.
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Dr. Ricardo Bernal, M.D.
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Anita Marie Fletcher, M.D.
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Ingrid Stringa, APRN
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Marcia L Verduin, MD
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Practice Location: 5201 Raymond St, Orlando, FL 32803
Phone: 407-629-1599    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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