What is Charles Cook's NPI number?

Charles Cook's National Provider Identifier (NPI) is 1588616148, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Charles Cook's specialty?

Charles Cook is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).

Where is Charles Cook located?

Charles Cook's practice location on file with NPPES is 110 Francis St Ste 2g, Boston, MA 02215-5501.

What is Charles Cook's phone number?

The practice phone number listed in the NPPES registry for Charles Cook is (617) 632-9770.

Does Charles Cook accept Medicare?

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

Is Charles Cook's NPI active?

Yes — Charles Cook's NPI (1588616148) is active in the NPPES registry as of the last update on 2025-02-06.

IndividualActiveAccepts Medicare

Charles Cook, MD

NPI 1588616148 · Surgery Physician · Boston, MA

Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Charles Cook, MD is a Surgery Physician provider in Boston, MA (NPI 1588616148).

Provider details

NPI number: 1588616148
Entity type: Individual
Primary specialty: Surgery PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 35064289 (OH)

Specialties & taxonomies

Surgery PhysicianPrimary208600000XLicense 258054 (MA)
Allopathic & Osteopathic Physicians
Surgery Physician208600000XLicense 35064289 (OH)
Allopathic & Osteopathic Physicians
Surgical Critical Care Physician2086S0102XLicense 35064289 (OH)
Allopathic & Osteopathic Physicians
Surgical Critical Care Physician2086S0102XLicense 258054 (MA)
Allopathic & Osteopathic Physicians
Trauma Surgery Physician2086S0127XLicense 258054 (MA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(85/100 index)

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

Registry tenure25% of score
20 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
399 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)
Critical Care, First 30-74 Minutes99291	167	$220
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	91	$52
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	89	$82
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	39	$137
Hospital Discharge Day Management, 30 Minutes Or Less99238	13	$86

Typical Medicare-allowed amounts for these services range $52–$220 (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.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$565 across 2 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

110 Francis St Ste 2g

Boston, MA 02215-5501

Phone: (617) 632-9770

Fax: (617) 632-0886

Street-level locationGet directions

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Mailing address