Dr John Whitney Mercer Jr, MD - Medicare Obstetrics/gynecology in Montrose, CO

Dr John Whitney Mercer Jr, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Montrose, Colorado. He went to Louisiana State University School Of Medicine In Shreveport and graduated in 1997 and has 27 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Scl Health Medical Group - Grand Junction Llc and his current practice location is 715 S 3rd St, Montrose, Colorado. You can reach out to his office (for appointments etc.) via phone at (970) 249-6737.

Dr John Whitney Mercer Jr is licensed to practice in Colorado (license number CDR.0000210) 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 1205988540.

Contact Information

Dr John Whitney Mercer Jr, MD
715 S 3rd St,
Montrose, CO 81401-4209
(970) 249-6737
(970) 252-0112

Map and Direction




Physician's Profile

Full NameDr John Whitney Mercer Jr
GenderMale
SpecialityObstetrics/gynecology
Experience27 Years
Location715 S 3rd St, Montrose, Colorado
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:
  • Dr John Whitney Mercer Jr attended and graduated from Louisiana State University School Of Medicine In Shreveport in 1997
  NPI Data:
  • NPI Number: 1205988540
  • Provider Enumeration Date: 01/17/2007
  • Last Update Date: 12/13/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 5193610897
  • Enrollment ID: I20181121000053

Medical Identifiers

Medical identifiers for Dr John Whitney Mercer Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205988540NPI-NPPES
1487163MedicaidLA
L023779OtherLASTATE LICENSE
9000166884MedicaidCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology L023779 (Louisiana)Secondary
207V00000XObstetrics & Gynecology CDR.0000210 (Colorado)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Scl Health Medical Group - Grand Junction Llc3779707856207

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. Dr John Whitney Mercer Jr allows following entities to bill medicare on his behalf.
Entity NameLutheran Hospital Association Of The San Luis Valley
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235181744
PECOS PAC ID: 4789589094
Enrollment ID: O20031201000318
Entity NameMontrose Memorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285803635
PECOS PAC ID: 1658272992
Enrollment ID: O20040119000579
Entity NameScl Health Medical Group - Grand Junction Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356765556
PECOS PAC ID: 3779707856
Enrollment ID: O20140611000363

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. Dr John Whitney Mercer Jr 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
Dr John Whitney Mercer Jr, MD
715 S 3rd St,
Montrose, CO 81401-4209

Ph: (970) 249-6737
Dr John Whitney Mercer Jr, MD
715 S 3rd St,
Montrose, CO 81401-4209

Ph: (970) 249-6737

Reviews and Comments


Obstetrics & Gynecology Doctors in Montrose, CO

William E Dwelley, LM
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 21225 Uncompahgre Rd., Montrose, CO 81401
Phone: 970-249-5125    Fax: 970-249-5125
Dr. Stephanie R Killeen, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 715 S 3rd St, Montrose, CO 81401
Phone: 970-249-6737    Fax: 970-252-0112
Kaitlyn Biernacki, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 800 S 3rd St, Montrose, CO 81401
Phone: 970-249-6737    
Dr. James Nicholson Gilham, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 715 S 3rd St, Montrose, CO 81401
Phone: 970-249-6737    Fax: 970-252-0112
Dr. Derick R Fenton, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 715 S 3rd, Montrose, CO 81401
Phone: 970-249-6737    Fax: 970-252-0112
Richard G Hanley I, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 715 S 3rd St, Montrose, CO 81401
Phone: 970-249-6737    Fax: 970-252-0112

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.