Karen Hoang, NP
NPI 1134647449 · Nurse Practitioner · Westford, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Hoang, NP is a Nurse Practitioner provider in Westford, MA (NPI 1134647449).
Provider details
- NPI number
- 1134647449
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- RN2262084 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
287 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 147 | $112 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 84 | $13 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 56 | $7 |
Typical Medicare-allowed amounts for these services range $7–$112 (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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 138 | 54 |
| Apixabanbrand: Eliquis | 119 | 44 |
| Atorvastatin Calcium | 68 | 32 |
| Sacubitril/Valsartanbrand: Entresto | 46 | 16 |
| Amlodipine Besylate | 46 | 24 |
| Empagliflozinbrand: Jardiance | 44 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$325 across 4 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 (3)
- 1941 Johnson Ave Ste 102San Luis Obispo, CA 93401-4174Phone: (805) 782-8844Fax: (805) 549-6986
- 1941 Johnson Ave Ste 101San Luis Obispo, CA 93401-4154Phone: (805) 782-8844Fax: (805) 549-6985
- 41 Mall RdBurlington, MA 01805-3198Phone: (781) 744-8000
Registry dates
- Enumerated
- 2017-09-07
- Last updated
- 2024-12-30
- Certified
- 2024-10-17
Frequently asked questions
- What is Karen Hoang's NPI number?
- Karen Hoang's National Provider Identifier (NPI) is 1134647449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Hoang's specialty?
- Karen Hoang is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Hoang located?
- Karen Hoang's practice location on file with NPPES is 133 Littleton Rd Ste 202, Westford, MA 01886-3198.
- What is Karen Hoang's phone number?
- The practice phone number listed in the NPPES registry for Karen Hoang is (978) 577-1946.
- Does Karen Hoang accept Medicare?
- Karen Hoang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Hoang's NPI active?
- Yes — Karen Hoang's NPI (1134647449) is active in the NPPES registry as of the last update on 2024-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.