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DR. NANCY Z. DELANEY M.D.
NPI 1083623888
Internal Medicine in Saint Louis, MO

Active since August 08, 2006PECOS Enrolled
3660 VISTA AVE, SAINT LOUIS, MO 63110(314) 977-6100(314) 977-6164 Get Directions Write a Review

NPPES record last updated: March 9, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Nancy Z. Delaney M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NANCY Z. DELANEY M.D. (NPI 1083623888) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (R5037) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083623888
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. NANCY Z. DELANEYCredential: M.D.
Location Address3660 VISTA AVESaint Louis, MO 63110-2540
Mailing Address3691 Rutger St, Provider EnrollmentSaint Louis, MO 63110-2515 · (314) 977-6828 · Fax (314) 977-6777
Phone(314) 977-6100
Fax(314) 977-6164
Sole ProprietorNo
Enumeration DateAugust 8, 2006
Last NPPES UpdateMarch 9, 2021
NPPES CertifiedFebruary 7, 2021
✔ NPI 1083623888 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · R5037
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3660 VISTA AVE, Saint Louis, MO 63110
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Other Identifiers 1

Medicaid202510418MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Nancy Z. Delaney M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Nancy Delaney reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ssm Health Care Group
0.3 mi
Internal Medicine
1225 SOUTH GRAND BLVD, 2L - DOOR 3,4
Saint Louis, MO 63104
  • Reassigned Medicare billing, Missouri enrollment
  • 1,294 clinicians in this Medicare group
NPI 1306589544 (314) 977-6100

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHRISTINA TSAI
Internal Medicine
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-6100
KRISTA L LENTINE MD,PHD
Internal Medicine (Nephrology)
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-8765
MARGARET M WILSON MD
Internal Medicine (Geriatric Medicine)
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-8462
DR. ESTHER A. GONZALEZ M.D.
Internal Medicine (Nephrology)
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 577-8765
CHRISTIAN HENDRIX
Internal Medicine
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-6100
MARILYN A. MAXWELL M.D.
Internal Medicine
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-6100
HESSELBERG DRUG COMPANY
Pharmacy (Community/Retail Pharmacy)
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 771-2900
TAYLOR JAMES BASTIN
Hospitalist
3660 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 977-6100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nancy Delaney's NPI number?

The NPI number for Nancy Delaney is 1083623888. It was assigned to this individual provider in the NPPES registry on August 8, 2006.

Where is Nancy Delaney located?

Nancy Delaney practices at 3660 Vista Ave, Saint Louis, MO 63110. The listed phone number is (314) 977-6100.

What is Nancy Delaney's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Nancy Delaney enrolled in Medicare?

Yes. Nancy Delaney is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Nancy Delaney's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Delaney reassigns Medicare benefits to Ssm Health Care Group (Saint Louis, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nancy Delaney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nancy Delaney accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Nancy Delaney as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Nancy Delaney was last updated on March 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.