DIANE Z GREINER M.D.
NPI 1568462885
Internal Medicine - Cardiovascular Disease in San Antonio, TX

Q: What is Diane Greiner's NPI number?

The NPI number for Diane Greiner is 1568462885. It was assigned to this individual provider in the NPPES registry on July 28, 2005.

Q: What is Diane Greiner's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Diane Greiner was last updated on December 28, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since July 28, 2005PECOS Enrolled

502 MADISON OAK DR, SUITE 310, SAN ANTONIO, TX 78258(210) 483-8883(210) 474-1740 Get Directions Write a Review

NPPES record last updated: December 28, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Diane Z Greiner M.d. NPPES

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

DIANE Z GREINER M.D. (NPI 1568462885) is an individual cardiovascular disease provider in San Antonio, Texas, licensed in Texas (J6830) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1568462885

Entity TypeIndividualFemale

Primary Taxonomy207RC0000X

Provider Legal NameDIANE Z GREINERCredential: M.D.

Location Address502 MADISON OAK DR, SUITE 310San Antonio, TX 78258-4084

Mailing Address502 Madison Oak Dr, Suite 310San Antonio, TX 78258-4084 · (210) 483-8883 · Fax (210) 474-1740

Phone(210) 483-8883

Fax(210) 474-1740

Sole ProprietorNo

Enumeration DateJuly 28, 2005

Last NPPES UpdateDecember 28, 2012

✔ NPI 1568462885 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in TX · J6830

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

502 MADISON OAK DR, San Antonio, TX 78258

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diane Z Greiner 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 Diane Greiner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Bhs Physicians Network, Inc

Same address

Family Medicine

502 MADISON OAK DR STE 310
San Antonio, TX 78258

Reassigned Medicare billing, Texas enrollment
964 clinicians in this Medicare group

NPI 1598958431 (210) 483-8883

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 78258 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$68.55 typical visit price

range $17.52 – $136.11

Typical copayment $17.13 (range $4.38 – $34.02)

Most-billed visit code 99213

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.

DR. JANE AXTELL SHOWS ATKERSON MD

Obstetrics & Gynecology

502 MADISON OAK DR, SUITE 440
SAN ANTONIO, TX 78258

Bexar County (210) 946-1300

CHRISTINE L. GILLIAM, MD PA

Otolaryngology

502 MADISON OAK DR, SUITE 140
SAN ANTONIO, TX 78258

Bexar County (210) 647-3838

MS. CAIQIAN CROPPER MS, CGC

Genetic Counselor, MS

502 MADISON OAK DR, SUITE 450
SAN ANTONIO, TX 78258

Bexar County (210) 844-5854

RENATA FORD MD PA

Thoracic Surgery (Cardiothoracic Vascular Surgery)

502 MADISON OAK DR, SUITE 160
SAN ANTONIO, TX 78258

Bexar County (210) 519-5797

MRS. LESLIE ANNE BUCHEIT M.S., CGC

Genetic Counselor, MS

502 MADISON OAK DR, SUITE 450
SAN ANTONIO, TX 78258

Bexar County (210) 647-7946

WOMEN PARTNERS IN OB/GYN LLP

Obstetrics & Gynecology

502 MADISON OAK DR, SUITE 440
SAN ANTONIO, TX 78258

Bexar County (210) 946-1300

MR. ARONKUMAR T REDDY MD

Psychiatry & Neurology (Neurology)

502 MADISON OAK DR, SUITE 320
SAN ANTONIO, TX 78258

Bexar County (210) 655-3800

DR. MARILYN J VANOVER MD

Obstetrics & Gynecology

502 MADISON OAK DR, SUITE 440
SAN ANTONIO, TX 78258

Bexar County (210) 946-1300

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 Diane Greiner's NPI number?

The NPI number for Diane Greiner is 1568462885. It was assigned to this individual provider in the NPPES registry on July 28, 2005.

Where is Diane Greiner located?

Diane Greiner practices at 502 Madison Oak Dr Suite 310, San Antonio, TX 78258. The listed phone number is (210) 483-8883.

What is Diane Greiner's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Diane Greiner enrolled in Medicare?

Yes. Diane Greiner is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diane Greiner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Greiner reassigns Medicare benefits to Bhs Physicians Network, Inc (San Antonio, TX). 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 Diane Greiner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Diane Greiner accept?

Health plans from Blue Cross and Blue Shield of Texas list Diane Greiner 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 Diane Greiner was last updated on December 28, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.