What is William Kromka's NPI number?

William Kromka's National Provider Identifier (NPI) is 1558822593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Kromka's specialty?

William Kromka is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is William Kromka located?

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

What is William Kromka's phone number?

The practice phone number listed in the NPPES registry for William Kromka is (303) 949-0611.

Does William Kromka accept Medicare?

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

Is William Kromka's NPI active?

Yes — William Kromka's NPI (1558822593) is active in the NPPES registry as of the last update on 2025-10-28.

IndividualActiveAccepts Medicare

William Kromka

NPI 1558822593 · Psychiatry Physician · Boston, MA

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

William Kromka is a Psychiatry Physician provider in Boston, MA (NPI 1558822593).

Provider details

NPI number: 1558822593
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Sex: Male
Sole proprietor: No
License: 290099 (MA)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 290099 (MA)
Allopathic & Osteopathic Physicians
Psychiatry Physician2084P0800XLicense DR.0071461 (CO)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(60/100 index)

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

Registry tenure25% of score
7 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
48 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)
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	48	$49

Typical Medicare-allowed amounts for these services range $49–$49 (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.

$27 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

75 Francis St

Boston, MA 02115-6110

Phone: (303) 949-0611

Street-level locationGet directions

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Mailing address