What is Allison Bloom's NPI number?

Allison Bloom's National Provider Identifier (NPI) is 1558921825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Allison Bloom's specialty?

Allison Bloom is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Allison Bloom located?

Allison Bloom's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.

What is Allison Bloom's phone number?

The practice phone number listed in the NPPES registry for Allison Bloom is (617) 732-5500.

Does Allison Bloom accept Medicare?

Allison Bloom is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Allison Bloom's NPI active?

Yes — Allison Bloom's NPI (1558921825) is active in the NPPES registry as of the last update on 2023-06-05.

IndividualActiveAccepts Medicare

Allison Bloom, MD

NPI 1558921825 · Internal Medicine Physician · Boston, MA

Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Allison Bloom, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1558921825).

Provider details

NPI number: 1558921825
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: 1014024 (MA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 1014024 (MA)
Allopathic & Osteopathic Physicians
Pediatrics Physician208000000XLicense 1014024 (MA)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000XLicense 4351044254 (MI)
Student, Health Care

Profile Score

Established profile(57/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
7 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
3 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
254 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)
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	168	$77
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233	43	$122
Hospital Discharge Day Management, More Than 30 Minutes99239	26	$118
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	17	$180

Typical Medicare-allowed amounts for these services range $77–$180 (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.

Practice location

75 Francis St

Boston, MA 02115-6110

Phone: (617) 732-5500

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Mailing address