Quick answers
- Does Mariana X. Martinez Payne accept Medicare assignment?
- Medicare's clinician data says Mariana X. Martinez Payne may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Mariana X. Martinez Payne see?
- In 2024, CMS data shows 108 Original Medicare patients and 332 services for Mariana X. Martinez Payne. This counts Original Medicare only and measures volume, not quality.
- What is Mariana X. Martinez Payne's NPI number?
- 1578129052. 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 Mariana X. Martinez Payne, 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 | 108 |
|---|---|
| Services billed to Medicare | 332 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Pelvic exam (99459)104 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)64 services
- Urinalysis, manual test (81002)61 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)42 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)14 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 cholesterol75%
- High blood pressure66%
- Arthritis54%
- Diabetes27%
- Anxiety27%
- Osteoporosis27%
Practice locations
Addresses where Mariana X. Martinez Payne is enrolled with Medicare (CMS data updated October 2, 2026).
- 133 Defense HwyAnnapolis, MD 21401
- 23 Crossrds DrOwings Mills, MD 21117
- 2401 W Belvedere Ave, Sinai Ob/gyn AssociatesBaltimore, MD 21215 (410) 601‑5530
- 61 Thomas Johnson DrFrederick, MD 21702 (301) 663‑6171
Group practices
Medicare enrollment lists Mariana X. Martinez Payne as a member of these groups (CMS data updated October 2, 2026).
- Privia Medical Group, LLC1,533 clinicians in the group
- Sinai Hospital of Baltimore, Inc380 clinicians in the group
- Capital Womens Care LLC281 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Annapolis
Clinicians with the same Medicare primary specialty in Annapolis, MD — not a recommendation.
Other clinicians in Privia Medical Group, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1578129052 |
| 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