Quick answers
- Does Mary Y. Tang accept Medicare assignment?
- Yes. Medicare's clinician data says Mary Y. Tang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Mary Y. Tang see?
- In 2024, CMS data shows 64 Original Medicare patients and 212 services for Mary Y. Tang. This counts Original Medicare only and measures volume, not quality.
- What is Mary Y. Tang's NPI number?
- 1770532061. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Mary Y. Tang, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 64 |
|---|---|
| Services billed to Medicare | 212 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 85 |
Most frequent services
- Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a (G0179)107 services
- Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)54 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Heart failure75%
- Arthritis70%
- Chronic kidney disease61%
- Depression59%
Practice locations
Addresses where Mary Y. Tang is enrolled with Medicare (CMS data updated October 2, 2026).
- 2549 Springhill DrGrapevine, TX 76051 (682) 223‑1526
Group practices
Medicare enrollment lists Mary Y. Tang as a member of this group (CMS data updated October 2, 2026).
- Concierge Mobile MD, PLLC2 clinicians in the group
Specialties
- Internal Medicineprimary
- Emergency Medicinealso
- Geriatric Medicinealso
Other internal medicine doctors in Grapevine
Clinicians with the same Medicare primary specialty in Grapevine, TX — not a recommendation.
Other clinicians in Concierge Mobile MD, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770532061 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians