Onyinye C Onyekwere, MD, MS, FAAP

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

D0063251 Issued in MD

Practice address

8607 2ND Ave Ste 505a
Silver Spring, MD 20910-3355

Phone

(240) 641-8160

Fax

(240) 331-0073

NPI assigned

Sep 14, 2006

Last updated

Jan 31, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 4

Addresses

Other identifiers 5

Medicare fee-for-service enrollment

Enrolled in DC

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Pediatric MedicineAlso: Hematology, Hematology/Oncology

Education

Michigan State University College of Human Medicine, 1995

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Advanced Neighborhood PediatricsGroup PAC ID 8820221468, 2 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Master of Science

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/8141/brand/1/csg/1/fhir/r4
• Direct secure messaging: onyinye.onyekwere.1@8141.direct.athenahealth.com
• Direct secure messaging: onyinye.onyekwere.2@8141.direct.athenahealth.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Advanced Neighborhood Pediatrics

  • Clinic/Center
  • Silver Spring, MD
  • NPI 1174954705

  DC

  Medicare reassignment Care Compare group NPD Authorized official
• Frederick Health Hospital Inc

  dba Frederick Health Hospital

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)
• Holy Cross Health, Inc

  dba Holy Cross Hospital

  • General Acute Care Hospital
  • Silver Spring, MD
  • NPI 1669417838
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1158192000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769817600000",
    "number": "1477658128",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12239 CYPRESS SPRING RD",
            "city": "CLARKSBURG",
            "state": "MD",
            "postal_code": "208714415",
            "telephone_number": "240-641-8160",
            "fax_number": "240-331-0073"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8607 2ND AVE STE 505A",
            "city": "SILVER SPRING",
            "state": "MD",
            "postal_code": "209103355",
            "telephone_number": "240-641-8160",
            "fax_number": "240-331-0073"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "23212 Ridge Rd",
            "address_purpose": "LOCATION",
            "city": "Germantown",
            "state": "MD",
            "postal_code": "208764552",
            "country_code": "US",
            "telephone_number": "240-641-8160",
            "fax_number": "240-331-0073",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "12239 Cypress Spring Rd",
            "address_2": "Suite 010",
            "address_purpose": "LOCATION",
            "city": "Clarksburg",
            "state": "MD",
            "postal_code": "208714415",
            "country_code": "US",
            "telephone_number": "240-374-8616",
            "fax_number": "240-780-7159",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ONYEKWERE",
        "first_name": "ONYINYE",
        "middle_name": "C",
        "name_prefix": "Dr.",
        "credential": "MD, MS, FAAP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-09-14",
        "last_updated": "2026-01-31",
        "certification_date": "2026-01-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "DC",
            "license": "MD33750",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "DC",
            "license": "MD33750",
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MD",
            "license": "D0063251",
            "primary": true
        },
        {
            "code": "2080P0207X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Hematology-Oncology",
            "state": "MD",
            "license": "D63251",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "35348700",
            "state": "DC"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "97545400",
            "state": "DC"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "403549601",
            "state": "MD"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "347196",
            "state": "DC"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "403549600",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Adaku Chimtua Onukogu, MD
• Michael Onwugbufor, M.D
• Ifeyinwa Onwumere
• Kelechi Lilian Onwuzuruike
• Doris Oluchi Onyegwara
• Grace E Onyemachi
• Chukwuemeka Onyewu, M.D.
• Nik Jefferson Ooi
• Carmen M Oostburg Sanz, D.C.
• Ishioma E Opia-Edemenya, DPT

• Pediatrics Physician in Silver Spring, MD
• Providers in Silver Spring, MD by specialty
• Pediatrics Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 31, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.