Mary Holthaus, PA
NPI 1285296913 · Medical Physician Assistant · Annapolis, MD
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Holthaus, PA is a Medical Physician Assistant provider in Annapolis, MD (NPI 1285296913).
Provider details
- NPI number
- 1285296913
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
60 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 32 | $14 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 28 | $146 |
Typical Medicare-allowed amounts for these services range $14–$146 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Donepezil Hcl | 58 | 28 |
| Memantine Hcl | 37 | 21 |
| Fludrocortisone Acetate | 35 | — |
| Gabapentin | 29 | 12 |
| Galcanezumab-Gnlmbrand: Emgality Pen | 25 | — |
| Pyridostigmine Bromide | 22 | 12 |
| Sertraline Hcl | 22 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$192 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 130 Love Point Rd Ste 107Stevensville, MD 21666-2132Phone: (410) 266-9694
Registry dates
- Enumerated
- 2019-07-02
- Last updated
- 2023-01-19
- Certified
- 2023-01-19
Frequently asked questions
- What is Mary Holthaus's NPI number?
- Mary Holthaus's National Provider Identifier (NPI) is 1285296913, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Holthaus's specialty?
- Mary Holthaus is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Holthaus located?
- Mary Holthaus's practice location on file with NPPES is 122 Defense Hwy Ste 210, Annapolis, MD 21401-7071.
- What is Mary Holthaus's phone number?
- The practice phone number listed in the NPPES registry for Mary Holthaus is (410) 266-9694.
- Does Mary Holthaus accept Medicare?
- Mary Holthaus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Holthaus's NPI active?
- Yes — Mary Holthaus's NPI (1285296913) is active in the NPPES registry as of the last update on 2023-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.