Karen Hsu Blatman, MD
NPI 1649484189 · Allergy & Immunology Physician · Lebanon, NH
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Hsu Blatman, MD is a Allergy & Immunology Physician provider in Lebanon, NH (NPI 1649484189).
Provider details
- NPI number
- 1649484189
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 244384 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
157 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 | 103 | $94 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 35 | $130 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 19 | $127 |
Typical Medicare-allowed amounts for these services range $94–$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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omalizumabbrand: Xolair | 69 | — |
| Montelukast Sodium | 37 | 13 |
| Epinephrine | 32 | 24 |
| Levocetirizine Dihydrochloride | 24 | — |
| Budesonide/Formoterol Fumaratebrand: Budesonide-Formoterol Fumarate | 17 | — |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 16 | — |
| Tiotropium Bromidebrand: Spiriva Respimat |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16 across 1 record (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 (1)
- 850 Boylston StSuite 540Chestnut Hill, MA 02467-2477Phone: (617) 732-9850Fax: (617) 731-2748
Registry dates
- Enumerated
- 2007-05-10
- Last updated
- 2019-10-18
Frequently asked questions
- What is Karen Hsu Blatman's NPI number?
- Karen Hsu Blatman's National Provider Identifier (NPI) is 1649484189, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Hsu Blatman's specialty?
- Karen Hsu Blatman is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Hsu Blatman located?
- Karen Hsu Blatman's practice location on file with NPPES is One Medical Center Dr, Lebanon, NH 03756.
- What is Karen Hsu Blatman's phone number?
- The practice phone number listed in the NPPES registry for Karen Hsu Blatman is (603) 653-9885.
- Does Karen Hsu Blatman accept Medicare?
- Karen Hsu Blatman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Hsu Blatman's NPI active?
- Yes — Karen Hsu Blatman's NPI (1649484189) is active in the NPPES registry as of the last update on 2019-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.