Martha Barck, CNP
NPI 1629663141 · Psychiatric/Mental Health Nurse Practitioner · Northfield, MN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martha Barck, CNP is a Psychiatric/Mental Health Nurse Practitioner provider in Northfield, MN (NPI 1629663141).
Provider details
- NPI number
- 1629663141
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 8059 (MN)
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
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
100 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) |
|---|---|---|
| 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 | 53 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 47 | $106 |
Typical Medicare-allowed amounts for these services range $13–$106 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bupropion Hclbrand: Bupropion Xl | 50 |
| Buspirone Hcl | 43 |
| Hydroxyzine Hcl | 38 |
| Duloxetine Hcl | 37 |
| Quetiapine Fumarate | 32 |
| Aripiprazole | 31 |
| Divalproex Sodium | 24 |
| Gabapentin | 24 |
| Risperidone | 23 |
| Lamotrigine |
Practice location
Mailing address
Additional practice locations (1)
- 570 Professional DrNorthfield, MN 55057-2756Phone: (507) 301-3412
Registry dates
- Enumerated
- 2021-03-05
- Last updated
- 2023-03-30
- Certified
- 2023-03-30
Frequently asked questions
- What is Martha Barck's NPI number?
- Martha Barck's National Provider Identifier (NPI) is 1629663141, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Barck's specialty?
- Martha Barck is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Martha Barck located?
- Martha Barck's practice location on file with NPPES is 1400 Jefferson Rd, Northfield, MN 55057-3081.
- What is Martha Barck's phone number?
- The practice phone number listed in the NPPES registry for Martha Barck is (507) 663-9000.
- Does Martha Barck accept Medicare?
- Martha Barck is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martha Barck's NPI active?
- Yes — Martha Barck's NPI (1629663141) is active in the NPPES registry as of the last update on 2023-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.