ROBERT S MAYER (M.D.) – Physical Medicine & Rehabilitation Physician, NPI 1003865585

ROBERT S MAYER (M.D.) is a healthcare provider. based in Baltimore, Maryland. specializing in PHYSICAL MEDICINE AND REHABILITATION. They hold the professional credentials M.D.. They hold a License No. D57380 (MD). The NPI Number for ROBERT S MAYER (M.D.) is 1003865585

Main info

Male
40 Years Of Experience
Name
ROBERT S MAYER (M.D.)
NPI
1003865585
Phone
(410) 502-2252
Address
PO BOX 64407
Enumeration Date
10 May 2006
Last Update Date
12 February 2013

Doctor Profile

Medical School Name
NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Secondary Phone
-
Graduation Year
1986 (40 years ago)
PAC ID
5496885584
Group Practice PAC ID
6507846771
Professional Enrollment ID
I20100616000712
Address ID
MD208171844BE6410XDRXX303
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

375 PHYSICAL MEDICINE AND REHABILITATION in MD

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Provider Addresses for ROBERT S MAYER (M.D.)

  • PO BOX 64407

    BALTIMORE, MD 212644407

    Phone: (410) 502-2252

    Type: Mailing

  • 600, North Wolfe Street, Washington Hill, Baltimore, Maryland, 21205, United States

    BALTIMORE, MD 212870005

    Phone: (410) 532-4701

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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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: 2010-06-16

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
I20100616000712IPhysical Medicine And RehabilitationMDTBD

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
J0585Injection, onabotulinumtoxina, 1 unit5,97913$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes651210$0
J0475Injection, baclofen, 10 mg15419$0
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes146108$0
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes145142$0
View full utilization report →

Insurance plans in this area (ZIP 21264)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6507846771View full group profile
NameSpecialtyState
Internal MedicineMD
Internal MedicineMD
Internal MedicineMA
Anesthesiology, Interventional Pain Management, Pain Management, Physical Medicine And Rehabilitation, Pain Management, Physical Medicine And Rehabilitation, Interventional Pain Management, AnesthesiologyPA
Internal Medicine, Medical Oncology, Hematology, Internal MedicineME
Internal MedicineMD
Physician AssistantNY
Internal MedicineMD
Neuropsychiatry, NeurologyPA
Internal MedicineMD

Reviews

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Frequently asked questions

Does ROBERT S MAYER (M.D.) have a public NPI I can cite?
Public records show ROBERT S MAYER (M.D.) under NPI 1003865585.
Does the public listing show ROBERT S MAYER (M.D.) as active?
ROBERT S MAYER (M.D.)'s NPI record reflects an active status in NPPES.
What services align with ROBERT S MAYER (M.D.)'s listing?
ROBERT S MAYER (M.D.)'s public classification highlights Physical Medicine & Rehabilitation Physician. Clinical services aligned with this taxonomy classification.
Is ROBERT S MAYER (M.D.) tied to Baltimore, Maryland?
If you are local to Baltimore, Maryland, ROBERT S MAYER (M.D.) may be relevant to your search.
Who maintains ROBERT S MAYER (M.D.)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

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