Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Robert L Johnson , PA-C

Physician Assistant โ€ข Royal Oak, MI

Active NPI 1578510541 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

3601 W 13 Mile Rd
Royal Oak, MI 480736712

Call 2488985000 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

3601 W 13 Mile Rd

Royal Oak, MI 480736712

Telephone 2488985000
Organization at the Same NPPES Address or Phone
William Beaumont Hospital Facility NPI 1689653305

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 2 distinct additional practice-address records in Grand Blanc, MI; Troy, MI. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Henry Ford Health Providence Hospital. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

1997

Medicare patients

42 people with Original Medicare in 2021

Different Original Medicare patients in 2021; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2021.

Medicare-allowed amount

About $6,646 in 2021

The total amount Medicare approved for these services in 2021. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2021.

Paid by Medicare

About $5,331 in 2021

The part of the Medicare-allowed amount that Medicare itself paid in 2021, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2021.

30-day fills

33 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$61 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $66.74 across 3 records.

By nature of payment

  • Food and Beverage: $66.74 across 3 records.

Reporting-company totals

  • Chiesi USA, Inc.: $66.74 across 3 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

29 years (graduated 1997)

CMS Doctors and Clinicians data list 1997 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Robert Johnson has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Robert Johnson as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Royal Oak and Michigan

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

Fewer Part D prescriptions than 80% of clinicians listed under Physician Assistant in Royal Oak, MI (2024, 84 clinicians with data). Median for this group: 143. Middle half: 36 to 544.

Fewer Part D prescriptions than 90% of clinicians listed under Physician Assistant in Michigan (2024, 3,755 clinicians with data). Median for this group: 300. Middle half: 83 to 1,058.

Part D drug cost

A lower Part D drug cost than 95% of clinicians listed under Physician Assistant in Royal Oak, MI (2024, 84 clinicians with data). Median for this group: $723. Middle half: $222 to $33,923.

A lower Part D drug cost than 95% of clinicians listed under Physician Assistant in Michigan (2024, 3,755 clinicians with data). Median for this group: $6,011. Middle half: $670 to $116,834.

Medicare Part B

Comparisons use 2024 data. The latest CMS data for Robert Johnson are from 2021.

211 active clinicians are listed under Physician Assistant with a practice address in Royal Oak, MI (7,164 in Michigan).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Royal Oak

6.6% of these 211 clinicians have the CMS telehealth indicator.

57.3% of these 211 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2021), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $66.74.

Manufacturer Payment Nature Product Type Amount ($)
Chiesi USA, Inc.
Food and Beverage
Cash or cash equivalent
CLEVIPREX General $22.90
Chiesi USA, Inc.
Food and Beverage
Cash or cash equivalent
CLEVIPREX General $22.83
Chiesi USA, Inc.
Food and Beverage
Cash or cash equivalent
CLEVIPREX General $21.01

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2021.

CMS Part B ยท Data Year 2021
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2019โ€“2020 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2020โ€“2021; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
33533 Coronary artery bypass using artery graft, 1 graft
22 22 $2982.00 $265.76
33508 Harvest of vein using an endoscope
18 18 $26.00 $2.39
33518 Coronary artery bypass using vein or artery graft, 2 grafts
12 12 $646.00 $62.99

Source: CMS Part B by Provider and Service, 2021; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Carvedilol Carvedilol 12 525 $40.75 โ€”
Metoprolol Tartrate Metoprolol Tartrate 11 405 $19.86 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-04-14
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Physician Assistant - Surgical

NUCC Taxonomy Code: 363AS0400X

Physician Assistant - Medical

NUCC Taxonomy Code: 363AM0700X

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Michigan Department of Licensing and Regulatory Affairs.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Other Identifier Nccpa Certificate Number
1037737 (MI)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20071204000311

Enrollment State Jurisdiction

MI

PECOS Control ID

5799874426

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Henry Ford Health Providence Hospital

16001 W 9 Mile Rd 3rd Floor, Southfield, MI 480754818

Phone: 2488496033

Henry Ford Health Providence Hospital

16001 W 9 Mile Rd 3rd Fl, Southfield, MI 480754818

Phone: 2488496033

Henry Ford Health Providence Hospital

16001 W 9 Mile Rd, Southfield, MI 480754818

Phone: 2484243000

Secondary Practice Locations

1 Genesys Pkwy Ste 3452

Grand Blanc, MI 484398065

Phone: 2488492600

44201 Dequindre Rd

Troy, MI 480851117

Phone: 2489648432

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

24 listed
Dr. Mahmoud Ahmed , MD

Internal Medicine - Clinical Cardiac Electrophysiology

NPI 1053972406

Doctor of Medicine (M.D.)

Maryana Akrawi

Nurse Practitioner - Family

NPI 1003363169
Lindsey Armour , CRNA

Nurse Anesthetist, Certified Registered

NPI 1093289654

Certified Registered Nurse Anesthetist

Shalimar Blanton

Nurse Practitioner

NPI 1073197562
NPI 1093133209

Doctor of Medicine (M.D.)

Juana Gaiem , PA-C

Physician Assistant

NPI 1083184816

Physician Assistant (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

16 Historical Events
๐Ÿข
Secondary Practice Location Registered April 14, 2026

Additional practice office at 44201 Dequindre Rd, Troy, MI 480851117

๐Ÿข
Secondary Practice Location Registered April 14, 2026

Additional practice office at 1 Genesys Pkwy Ste 3452, Grand Blanc, MI 484398065

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 14, 2026

Physician Assistant

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) October 13, 2023

Physician Assistant

๐Ÿ“
Updated Practice Location July 21, 2022

Registered at 3601 W 13 MILE RD, ROYAL OAK, MI 480736712 (Tel: 2488985000)

๐Ÿ“
Updated Business Mailing Address July 21, 2022

Registered at 26901 BEAUMONT BLVD STE 3D, SOUTHFIELD, MI 480333849 (Tel: 9475221848)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 21, 2022

Physician Assistant

๐Ÿ“
Updated Practice Location January 26, 2022

Registered at 1 GENESYS PKWY STE 3452, GRAND BLANC, MI 484398065 (Tel: 2488492600)

๐Ÿ“
Updated Business Mailing Address January 26, 2022

Registered at 16001 W 9 MILE RD # 3, SOUTHFIELD, MI 480754818 (Tel: 2488492600)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 26, 2022

Physician Assistant

โœ…
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) July 08, 2007

Registered at 3601 W 13 MILE RD, ROYAL OAK, MI 480736712 (Tel: 2488987114)

๐Ÿ“
Business Mailing Address (Initial Record) July 08, 2007

Registered at 24648 EMILY DR, BROWNSTOWN, MI 481835421 (Tel: 7347820518)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) July 08, 2007

Recorded as ROBERT JOHNSON, PAC

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Physician Assistant

๐ŸŸข
Initial NPI Registration & Enumeration May 27, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1578510541
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 27, 2006
Last Update: April 14, 2026
Sole Proprietor: No

Other Physician Assistants in Royal Oak

All Physician Assistants in Royal Oak

Mailing Address

26901 Beaumont Blvd Ste 3d

Southfield, MI 480333849

Phone: 9475221848

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.