What is Francisco Rivera Zambrano's NPI number?

Francisco Rivera Zambrano's National Provider Identifier (NPI) is 1528448875, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Francisco Rivera Zambrano's specialty?

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

Where is Francisco Rivera Zambrano located?

Francisco Rivera Zambrano's practice location on file with NPPES is 2435 W Belvedere Ave Ste 56, Baltimore, MD 21215-5224.

What is Francisco Rivera Zambrano's phone number?

The practice phone number listed in the NPPES registry for Francisco Rivera Zambrano is (410) 601-0594.

Does Francisco Rivera Zambrano accept Medicare?

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

Is Francisco Rivera Zambrano's NPI active?

Yes — Francisco Rivera Zambrano's NPI (1528448875) is active in the NPPES registry as of the last update on 2025-09-04.

IndividualActiveAccepts Medicare

Francisco Rivera Zambrano, M.D.

NPI 1528448875 · Internal Medicine Physician · Baltimore, MD

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

Francisco Rivera Zambrano, M.D. is a Internal Medicine Physician provider in Baltimore, MD (NPI 1528448875).

Provider details

NPI number: 1528448875
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense D88683 (MD)
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 tenure28% of score
11 yrs in NPPES registry
Profile completeness28% of score
83% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
721 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	440	$80
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	107	$134
Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233	67	$116
Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223	62	$177
Hospital Discharge Day Management, More Than 30 Minutes99239	45	$116

Typical Medicare-allowed amounts for these services range $80–$177 (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

2435 W Belvedere Ave Ste 56

Baltimore, MD 21215-5224

Phone: (410) 601-0594

Fax: (410) 601-0939

Street-level locationGet directions

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Mailing address