Catherine Mullin, FNP
NPI 1952986721 · Internal Medicine Physician · Osterville, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Mullin, FNP is a Internal Medicine Physician provider in Osterville, MA (NPI 1952986721).
Provider details
- NPI number
- 1952986721
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- RN2294958 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Nursing Service Providers
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
465 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 142 | $110 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 69 | $78 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 32 | $7 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 27 | $8 |
| Albumin (protein) Level82040 | 25 | $5 |
| Bilirubin Level, Total82247 | 25 | $5 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Rosuvastatin Calcium | 12 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-03-13
- Last updated
- 2024-09-09
- Certified
- 2024-09-09
Frequently asked questions
- What is Catherine Mullin's NPI number?
- Catherine Mullin's National Provider Identifier (NPI) is 1952986721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Mullin's specialty?
- Catherine Mullin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Mullin located?
- Catherine Mullin's practice location on file with NPPES is 770 Main St, Osterville, MA 02655-1913.
- What is Catherine Mullin's phone number?
- The practice phone number listed in the NPPES registry for Catherine Mullin is (774) 552-3201.
- Does Catherine Mullin accept Medicare?
- Catherine Mullin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Mullin's NPI active?
- Yes — Catherine Mullin's NPI (1952986721) is active in the NPPES registry as of the last update on 2024-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.