MEDICAL OFFICE OF JOHN VASSALLO MD PLLC – Internal Medicine Physician, NPI 1487712121

MEDICAL OFFICE OF JOHN VASSALLO MD PLLC is a healthcare provider. based in Howell, Michigan. specializing in Internal Medicine Physician. The organization holds a License No. 4301078585 (MI). The NPI Number for MEDICAL OFFICE OF JOHN VASSALLO MD PLLC is 1487712121

Main info

Organization
Name
MEDICAL OFFICE OF JOHN VASSALLO MD PLLC
NPI
1487712121
Phone
(517) 548-0010
Address
1225 W GRAND RIVER AVE STE 300
Authorized Official
DR. JOHN C VASSALLO OWNER MD
Enumeration Date
5 December 2006
Last Update Date
13 April 2026
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience62
Completeness85
Years active:19State licenses:1Digital endpointsOther names

Provider Addresses for MEDICAL OFFICE OF JOHN VASSALLO MD PLLC

  • 1225 W GRAND RIVER AVE STE 300

    HOWELL, MI 488433970

    Phone: (517) 548-0010

    Type: Location

  • Howell Pediatrics and Teen Center, 3399, East Grand River Avenue, Howell, Livingston County, Michigan, 48843, United States

    SUITE 204

    HOWELL, MI 488437555

    Phone: (517) 540-0709

    Type: Mailing

  • 2209 Euler Rd Ste 1

    Brighton, MI 481146815

    Phone: (517) 540-0709

    Fax: (517) 540-1775

    Type: Location

  • 4354 E GRAND RIVER AVE

    HOWELL, MI 488438554

    Phone: (517) 540-0709

    Fax: (517) 540-1775

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2006-03-21

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
O20060321000735OClinic/Group PracticeMITBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 48843)

Loading plans...

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What number should I use to identify MEDICAL OFFICE OF JOHN VASSALLO MD PLLC for billing?
Administrative and clinical systems typically use NPI 1487712121 for MEDICAL OFFICE OF JOHN VASSALLO MD PLLC.
Quick check: is MEDICAL OFFICE OF JOHN VASSALLO MD PLLC active?
Public NPPES data shows MEDICAL OFFICE OF JOHN VASSALLO MD PLLC with an active NPI status right now.
What does the directory say MEDICAL OFFICE OF JOHN VASSALLO MD PLLC does?
Insurance directories may phrase it differently, but here MEDICAL OFFICE OF JOHN VASSALLO MD PLLC maps to Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
What city is tied to MEDICAL OFFICE OF JOHN VASSALLO MD PLLC?
The directory associates MEDICAL OFFICE OF JOHN VASSALLO MD PLLC with Howell, Michigan. Check all listed addresses for suites or satellite offices.
Who maintains MEDICAL OFFICE OF JOHN VASSALLO MD PLLC's record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

Similar Providers

DR. JOSEPH J SKANDALARIS (D.O.)

Internal Medicine Physician
820, Byron Road, Howell, Livingston County, Michigan, 48843, United States
NPI: 1477557056

LINDA CAROL LACHANCE (M.D.)

Internal Medicine Physician
2209 EULER RD
NPI: 1104825504

DR. JOHN C VASSALLO (M.D.)

Internal Medicine Physician
Howell Pediatrics and Teen Center, 3399, East Grand River Avenue, Howell, Livingston County, Michigan, 48843, United States
NPI: 1275590119

MRS. JACQUELEEN MARIE MAGON (MD)

Internal Medicine Physician
1200, Byron Road, Howell, Livingston County, Michigan, 48843, United States
NPI: 1992742464

DR. MOHAMMAD NADEEMULLAH (M. D.)

Internal Medicine Physician
1225 S LATSON RD
NPI: 1821031576

DR. ZEHRA NOORANI (M. D.)

Internal Medicine Physician
2305 GENOA BUSINESS PARK DR
NPI: 1427091032

DR. SYED MASOOD SHAHAB (M. D.)

Internal Medicine Physician
2305 GENOA BUSINESS PARK DR
NPI: 1912940123

DR. AARON MICHAEL DANIEL (M.D.)

Internal Medicine Physician
202 W HIGHLAND RD STE A
NPI: 1164434718

MORRIS L MICKELSON (MD)

Internal Medicine Physician
4331 E ALLEN RD
NPI: 1922173616