Karen Gelfand, MD - Medicare Pediatrics in Greeley, CO

Karen Gelfand, MD is a medicare enrolled "Pediatrics" physician in Greeley, Colorado. Her current practice location is 1610 29th Avenue Pl Ste 101, Greeley, Colorado. You can reach out to her office (for appointments etc.) via phone at (970) 356-2600.

Karen Gelfand is licensed to practice in New Mexico (license number 2004-0482) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1437243862.

Contact Information

Karen Gelfand, MD
1610 29th Avenue Pl Ste 101,
Greeley, CO 80634-6800
(970) 356-2600
(970) 356-2633

Map and Direction




Physician's Profile

Full NameKaren Gelfand
GenderFemale
SpecialityPediatrics
Location1610 29th Avenue Pl Ste 101, Greeley, Colorado
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1437243862
  • Provider Enumeration Date: 10/02/2006
  • Last Update Date: 04/20/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8022447846
  • Enrollment ID: I20200330003687

Medical Identifiers

Medical identifiers for Karen Gelfand such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1437243862NPI-NPPES
14083884MedicaidNM

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics DR.0057239 (Colorado)Secondary
208000000XPediatrics 2004-0482 (New Mexico)Primary

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. Karen Gelfand allows following entities to bill medicare on her behalf.
Entity NameTaos Health Systems Inc Holy Cross Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194751958
PECOS PAC ID: 8224937412
Enrollment ID: O20040107000398
Entity NameTaos Professional Services,llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891070777
PECOS PAC ID: 6507019924
Enrollment ID: O20130116000178

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. Karen Gelfand 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
Karen Gelfand, MD
1724 Brookhaven Cir E Apt B,
Fort Collins, CO 80525-1185

Ph: (505) 793-6329
Karen Gelfand, MD
1610 29th Avenue Pl Ste 101,
Greeley, CO 80634-6800

Ph: (970) 356-2600

Reviews and Comments


Pediatrics Doctors in Greeley, CO

Ashley Przybilla, M.D.
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Medicare: Medicare Enrolled
Practice Location: 100 N 11th Ave, Greeley, CO 80631
Phone: 970-352-8898    
Meghan Ann Croteau Fels, D.O.
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Medicare: Medicare Enrolled
Practice Location: 6801 W 20th St, Suite 201, Greeley, CO 80634
Phone: 970-350-5828    Fax: 970-810-4210
Dr. Amy Barbara Driscoll, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 5881 W 16th St, Greeley, CO 80634
Phone: 970-313-2700    Fax: 970-313-2727
Emily Grace Allwein, MD
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Medicare: Medicare Enrolled
Practice Location: 2429 35th Ave, Greeley, CO 80634
Phone: 970-207-7171    
Dr. M Meshelle Kolanz, MD
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Medicare: Medicare Enrolled
Practice Location: 5881 W 16th St, Greeley, CO 80634
Phone: 970-313-2700    Fax: 970-313-2727
Dr. Iwona R Filipowska, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 100 N 11th Ave, Greeley, CO 80631
Phone: 970-352-8898    Fax: 970-351-7075

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.