What is Sayed Mohammad Hosseini's NPI number?

Sayed Mohammad Hosseini's National Provider Identifier (NPI) is 1598150278, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sayed Mohammad Hosseini's specialty?

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

Where is Sayed Mohammad Hosseini located?

Sayed Mohammad Hosseini's practice location on file with NPPES is 101 S Ellwood Ave, Baltimore, MD 21224-2270.

What is Sayed Mohammad Hosseini's phone number?

The practice phone number listed in the NPPES registry for Sayed Mohammad Hosseini is (443) 839-5332.

Does Sayed Mohammad Hosseini accept Medicare?

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

Is Sayed Mohammad Hosseini's NPI active?

Yes — Sayed Mohammad Hosseini's NPI (1598150278) is active in the NPPES registry as of the last update on 2020-02-06.

IndividualActiveAccepts Medicare

Sayed Mohammad Hosseini, M.D.

NPI 1598150278 · Internal Medicine Physician · Baltimore, MD

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

Sayed Mohammad Hosseini, M.D. is a Internal Medicine Physician provider in Baltimore, MD (NPI 1598150278).

Provider details

NPI number: 1598150278
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: D0088557 (MD)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense D0088557 (MD)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(55/100 index)

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

Registry tenure28% of score
11 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
184 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)
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	66	$190
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232	43	$84
Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By ThG0316	28	$34
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233	24	$127
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	23	$144

Typical Medicare-allowed amounts for these services range $34–$190 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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

101 S Ellwood Ave

Apt 435

Baltimore, MD 21224-2270

Phone: (443) 839-5332

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Mailing address