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GREGORY WAYNE ROSS M.D.
NPI 1669516118
Internal Medicine in Baltimore, MD

Active since February 17, 2007PECOS EnrolledAccepts Medicare Assignment
222 N CHARLES ST STE 101B, BALTIMORE, MD 21201(410) 685-8665(410) 685-0272 Get Directions Write a Review

NPPES record last updated: December 21, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Gregory Wayne Ross M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREGORY WAYNE ROSS M.D. (NPI 1669516118) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D0034677) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of University Of North Carolina At Chapel Hill School Of Medicine (1984).

NPPES Registry Identity

NPI1669516118
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGREGORY WAYNE ROSSCredential: M.D.
Location Address222 N CHARLES ST STE 101BBaltimore, MD 21201-4032
Mailing Address15 Charles Plz Ste 101bBaltimore, MD 21201-3935 · (410) 685-8665
Phone(410) 685-8665
Fax(410) 685-0272
Sole ProprietorYes
Medical School CMSUniversity Of North Carolina At Chapel Hill School Of MedicineGraduated 1984
Enumeration DateFebruary 17, 2007
Last NPPES UpdateDecember 21, 2020
NPPES CertifiedDecember 21, 2020
✔ NPI 1669516118 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D0034677
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
222 N CHARLES ST STE 101B, Baltimore, MD 21201
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory Wayne Ross M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID749690717
PECOS Enrollment IDI20201103000012
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
65 services30 patients
Testing for presence of drug, by chemistry analyzers 80307
Chemistry analyzers are used to detect the presence of drugs in your system. This test involves taking a small sample of your blood or urine. The sample is then analyzed for specific substances. The results help in understanding your health condition better.
36 services21 patients
Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms G0480
A definitive drug test is a detailed examination that can identify specific drugs in your system, even closely related ones. Techniques like GC/MS and LC/MS are used for high precision. This helps ensure accurate results for your safety and health.
35 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21201 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

OUTREACH RECOVERY II, LLC
Counselor (Addiction (Substance Use Disorder))
222 N CHARLES ST STE 101B
BALTIMORE, MD 21201
Baltimore City (410) 800-4466
OUTREACH RECOVERY II
Internal Medicine (Addiction Medicine)
222 N CHARLES ST STE 101B
BALTIMORE, MD 21201
Baltimore City (410) 800-4466

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Ross's NPI number?

The NPI number for Gregory Ross is 1669516118. It was assigned to this individual provider in the NPPES registry on February 17, 2007.

Where is Gregory Ross located?

Gregory Ross practices at 222 N Charles St Ste 101B, Baltimore, MD 21201. The listed phone number is (410) 685-8665.

What is Gregory Ross's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gregory Ross enrolled in Medicare?

Yes. Gregory Ross is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Gregory Ross was last updated on December 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.