Mary Voltz, M.D.
NPI 1578540670 · Hematology & Oncology Physician · Nashua, NH
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Voltz, M.D. is a Hematology & Oncology Physician provider in Nashua, NH (NPI 1578540670).
Provider details
- NPI number
- 1578540670
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 9957 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
231 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 185 | $65 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 33 | $95 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $130 |
Typical Medicare-allowed amounts for these services range $65–$130 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 76 | 31 |
| Letrozole | 29 | 12 |
| Apixabanbrand: Eliquis | 27 | — |
| Hydroxyurea | 22 | — |
| Gabapentin | 21 | — |
| Acyclovir | 21 | — |
| Exemestane | 13 | — |
| Alendronate Sodium | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-29
- Last updated
- 2013-05-09
Frequently asked questions
- What is Mary Voltz's NPI number?
- Mary Voltz's National Provider Identifier (NPI) is 1578540670, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Voltz's specialty?
- Mary Voltz is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Voltz located?
- Mary Voltz's practice location on file with NPPES is 166 Kinsley St, Nashua, NH 03060-3676.
- What is Mary Voltz's phone number?
- The practice phone number listed in the NPPES registry for Mary Voltz is (603) 880-3408.
- Does Mary Voltz accept Medicare?
- Mary Voltz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Voltz's NPI active?
- Yes — Mary Voltz's NPI (1578540670) is active in the NPPES registry as of the last update on 2013-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.