Joan Kross, MD
NPI 1306953328 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joan Kross, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1306953328).
Provider details
- NPI number
- 1306953328
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 46976 (MA)
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
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
579 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 | 139 | $102 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 117 | $152 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 77 | $99 |
| 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 | 67 | $17 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 44 | $102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 610 | 155 |
| Amlodipine Besylate | 305 | 82 |
| Omeprazole | 244 | 59 |
| Lisinopril | 232 | 54 |
| Losartan Potassium | 215 | 59 |
| Metformin Hclbrand: Metformin Hcl Er | 132 | 34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joan Kross's NPI number?
- Joan Kross's National Provider Identifier (NPI) is 1306953328, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joan Kross's specialty?
- Joan Kross is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joan Kross located?
- Joan Kross's practice location on file with NPPES is 750 Washington St, Boston, MA 02111-1526.
- What is Joan Kross's phone number?
- The practice phone number listed in the NPPES registry for Joan Kross is (617) 636-5000.
- Does Joan Kross accept Medicare?
- Joan Kross is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joan Kross's NPI active?
- Yes — Joan Kross's NPI (1306953328) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.