Mary Seifel
NPI 1336299650 · Family Nurse Practitioner · Leeds, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Seifel is a Family Nurse Practitioner provider in Leeds, MA (NPI 1336299650).
Provider details
- NPI number
- 1336299650
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 190627 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,146 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 911 | $91 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 127 | $129 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 81 | $63 |
| Nursing Facility Discharge Day Management, 30 Minutes Or Less99315 | 27 | $69 |
Typical Medicare-allowed amounts for these services range $63–$129 (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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tramadol Hcl | 111 | 25 |
| Trazodone Hcl | 85 | — |
| Gabapentin | 75 | — |
| Oxycodone Hcl | 75 | 16 |
| Atorvastatin Calcium | 66 | — |
| Oxycodone Hclbrand: Oxycontin | 63 | — |
| Oxycodone Myristate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-11
- Last updated
- 2021-03-08
- Certified
- 2021-03-08
Frequently asked questions
- What is Mary Seifel's NPI number?
- Mary Seifel's National Provider Identifier (NPI) is 1336299650, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Seifel's specialty?
- Mary Seifel is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Seifel located?
- Mary Seifel's practice location on file with NPPES is 38 Mulberry St Ste 204, Leeds, MA 01053-5339.
- What is Mary Seifel's phone number?
- The practice phone number listed in the NPPES registry for Mary Seifel is (413) 727-3901.
- Does Mary Seifel accept Medicare?
- Mary Seifel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Seifel's NPI active?
- Yes — Mary Seifel's NPI (1336299650) is active in the NPPES registry as of the last update on 2021-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.