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DR. ALEJANDRO RUBEN SINGER M.D.
NPI 1982656997
Obstetrics & Gynecology in Dallas, TX

Active since May 17, 2006PECOS EnrolledAccepts Medicare Assignment
3611 SWISS AVE, DALLAS, TX 75204(214) 879-8585(214) 879-8583 Get Directions Write a Review

NPPES record last updated: October 14, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Alejandro Ruben Singer M.d. NPPES

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

DR. ALEJANDRO RUBEN SINGER M.D. (NPI 1982656997) is an individual obstetrics & gynecology provider in Dallas, Texas, licensed in Texas (H6608) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Ut Southwestern University Hospital - William P. Clements Jr., and is a graduate of University Of Texas Southwestern Medical School At Dallas (1984).

NPPES Registry Identity

NPI1982656997
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. ALEJANDRO RUBEN SINGERCredential: M.D.
Location Address3611 SWISS AVEDallas, TX 75204-6245
Mailing Address3611 Swiss AveDallas, TX 75204-6245 · (214) 879-8585 · Fax (214) 879-8583
Phone(214) 879-8585
Fax(214) 879-8583
Sole ProprietorNo
Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 1984
Enumeration DateMay 17, 2006
Last NPPES UpdateOctober 14, 2015
✔ NPI 1982656997 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in TX · H6608
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
3611 SWISS AVE, Dallas, TX 75204
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINF2537TX
Medicare PIN00J46KTX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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 and accepts Medicare assignment

Dr. Alejandro Ruben Singer M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2668436825
PECOS Enrollment IDI20120821001128
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 Reassignments

2

Medicare enrollment records show Alejandro Singer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dallas Women's Healthcare Specialists, P.L.L.C.
Same address
Obstetrics & Gynecology
3611 SWISS AVE
Dallas, TX 75204
  • Reassigned Medicare billing, Texas enrollment
  • 4 clinicians in this Medicare group
NPI 1659560829 (214) 879-8585
Obgyn Hospitalists Of North Texas PLLC
0.3 mi
Obstetrics & Gynecology
3500 GASTON AVE
Dallas, TX 75246
  • Reassigned Medicare billing, Texas enrollment
  • 23 clinicians in this Medicare group
NPI 1780578328 (972) 431-0716

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
15 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

5/5 CMS rating
OwnershipGovernment - State
CMS Certification Number450044
Location6201 Harry Hines BlvdDallas, TX 75390 · Dallas County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75204 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
$131.01 typical visit price
range $57.18 – $172.86
Typical copayment $32.75 (range $14.29 – $43.21)
Most-billed visit code 99204
Established Patient
$71.28 typical visit price
range $18.48 – $141.20
Typical copayment $17.82 (range $4.62 – $35.30)
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 14

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

MRS. JULIE ESPEY LMSW
Social Worker
3611 SWISS AVE
DALLAS, TX 75204
Dallas County (214) 818-2603
MS. CINDY S ALEXANDER LCSW
Social Worker (Clinical)
3611 SWISS AVE
DALLAS, TX 75204
Dallas County (214) 818-2603
CARMEN GAMEZ LCSW
Social Worker (Clinical)
3611 SWISS AVE
DALLAS, TX 75204
Dallas County (214) 818-2602
DR. LINDSEY ALISON HALEY M.D.
Obstetrics & Gynecology
3611 SWISS AVE
DALLAS, TX 75204
Dallas County (214) 879-8585
SARAH HOWIE M.S. ED., LPC-INTERN
Counselor (Professional)
3611 SWISS AVE
DALLAS, TX 75204
Dallas County (214) 818-2624
WYNNE MITTLEDORF LPC
Counselor (Professional)
3611 SWISS AVE
DALLAS, TX 75204
Dallas County (214) 818-2655
DR. LAURA MARGARET MCCRACKEN
Psychologist (Clinical)
3611 SWISS AVE
DALLAS, TX 75204
Dallas County (214) 818-2605
MRS. VANESSA MARIN SANFORD MS, LPC
Counselor (Mental Health)
3611 SWISS AVE
DALLAS, TX 75204
Dallas County (214) 818-2600

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 Alejandro Singer's NPI number?

The NPI number for Alejandro Singer is 1982656997. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is Alejandro Singer located?

Alejandro Singer practices at 3611 Swiss Ave, Dallas, TX 75204. The listed phone number is (214) 879-8585.

What is Alejandro Singer's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Alejandro Singer enrolled in Medicare?

Yes. Alejandro Singer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Alejandro Singer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alejandro Singer reassigns Medicare benefits to 2 organizations: Dallas Women's Healthcare Specialists, P.L.L.C. (Dallas, TX) and Obgyn Hospitalists Of North Texas PLLC (Dallas, TX). Each 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 Alejandro Singer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alejandro Singer accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Alejandro Singer 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.

Is Alejandro Singer affiliated with any hospitals?

According to CMS data, Alejandro Singer is affiliated with Ut Southwestern University Hospital - William P. Clements Jr..

When was this NPI record last updated?

The NPPES record for Alejandro Singer was last updated on October 14, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.