Dr Erica R Drennen, MD - Medicare Obstetrics/gynecology in Parker, CO

Dr Erica R Drennen, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Parker, Colorado. She went to Ohio State University College Of Medicine and graduated in 2007 and has 17 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice Portercare Adventist Health System and her current practice location is 9403 Crown Crest Blvd Ste 200, Parker, Colorado. You can reach out to her office (for appointments etc.) via phone at (720) 721-1670.

Dr Erica R Drennen is licensed to practice in Colorado (license number 50069) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1982804837.

Contact Information

Dr Erica R Drennen, MD
9403 Crown Crest Blvd Ste 200,
Parker, CO 80138-8991
(720) 721-1670
(720) 721-8117

Map and Direction




Physician's Profile

Full NameDr Erica R Drennen
GenderFemale
SpecialityObstetrics/gynecology
Experience17 Years
Location9403 Crown Crest Blvd Ste 200, Parker, Colorado
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Erica R Drennen attended and graduated from Ohio State University College Of Medicine in 2007
  NPI Data:
  • NPI Number: 1982804837
  • Provider Enumeration Date: 07/19/2007
  • Last Update Date: 03/07/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9537332754
  • Enrollment ID: I20111104000058

Medical Identifiers

Medical identifiers for Dr Erica R Drennen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1982804837NPI-NPPES
33584281MedicaidCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 50069 (Colorado)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Portercare Adventist Health System0941110886547

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 Erica R Drennen allows following entities to bill medicare on her behalf.
Entity NamePortercare Adventist Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760761928
PECOS PAC ID: 0941110886
Enrollment ID: O20090115000327
Entity NameQuestcare Obstetrics Colorado Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417295932
PECOS PAC ID: 3072759133
Enrollment ID: O20130415000372

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 Erica R Drennen 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 Erica R Drennen, MD
9403 Crown Crest Blvd Ste 200,
Parker, CO 80138-8991

Ph: (720) 721-1670
Dr Erica R Drennen, MD
9403 Crown Crest Blvd Ste 200,
Parker, CO 80138-8991

Ph: (720) 721-1670

Reviews and Comments


Obstetrics & Gynecology Doctors in Parker, CO

Heidi A Gage, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 9395 Crown Crest Blvd, Parker, CO 80138
Phone: 303-269-4000    Fax: 303-306-7753
Susanna Choi, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 10233 S Parker Rd, Unit 200, Parker, CO 80134
Phone: 303-805-1264    Fax: 303-805-1164
Sunmee Lee, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 9397 Crown Crest Blvd, Suite 220, Parker, CO 80138
Phone: 303-721-1670    Fax: 303-721-8117
Ms. Lorie C Jones, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 9397 Crown Crest Blvd, 431, Parker, CO 80138
Phone: 720-851-8230    Fax: 720-851-8970
Diane M Schmitz, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 9397 Crown Crest Blvd, Suite 320, Parker, CO 80138
Phone: 303-766-0197    Fax: 303-766-0187
Dr. Oscar Antonio Aguirre, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 11953 Lioness Way, Suite 101, Parker, CO 80134
Phone: 303-322-0500    Fax: 303-322-0772
Dr. Chia-hui Lee, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 9397 Crown Crest Blvd, Suite 220, Parker, CO 80138
Phone: 303-721-1670    Fax: 303-721-8117

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.