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DR. JOHN L FLOWERS M.D.
NPI 1891735965
Surgery in Baltimore, MD

Active since June 07, 2006PECOS EnrolledAccepts Medicare Assignment
6535 N CHARLES ST, STE 125, BALTIMORE, MD 21204(410) 821-6260(410) 296-6936 Get Directions Write a Review

NPPES record last updated: December 17, 2009. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. John L Flowers M.d. NPPES

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

DR. JOHN L FLOWERS M.D. (NPI 1891735965) is an individual surgery provider in Baltimore, Maryland, licensed in Maryland (D40524) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Greater Baltimore Medical Center, and is a graduate of Hahnemann University College Of Medicine (1984).

NPPES Registry Identity

NPI1891735965
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. JOHN L FLOWERSCredential: M.D.
Location Address6535 N CHARLES ST, STE 125Baltimore, MD 21204-5826
Mailing Address6535 N Charles St, Suite 510Baltimore, MD 21204-5826 · (410) 821-6260 · Fax (410) 296-3963
Phone(410) 821-6260
Fax(410) 296-6936
Sole ProprietorNo
Medical School CMSHahnemann University College Of MedicineGraduated 1984
Enumeration DateJune 7, 2006
Last NPPES UpdateDecember 17, 2009
✔ NPI 1891735965 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MD · D40524
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
6535 N CHARLES ST, Baltimore, MD 21204
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Other Identifiers 3

Medicaid093601400MD
Medicare PINP597MD
Medicare UPINE67686

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

Dr. John L Flowers 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 ID8426050113
PECOS Enrollment IDI20070208000684
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 7

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
280 services176 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
189 services184 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
124 services123 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
58 services40 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
27 services23 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
20 services20 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Greater Baltimore Medical Center

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210044
Location6701 North Charles StreetBaltimore, MD 21204 · Baltimore County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21204 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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
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 20

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

DR. CHRISTOPHER JOHN SQUILLARO D.O.
Psychiatry & Neurology (Psychiatry)
6535 N CHARLES ST, SUITE 300
TOWSON, MD 21204
Baltimore County (410) 938-5252
DR. VIRGINIA TAI RUNKO PH.D.
Psychologist (Clinical)
6535 N CHARLES ST, SUITE 550
TOWSON, MD 21204
Baltimore County (410) 494-1662
ELAINE TINA KOUKOULAS M.D.
Psychiatry & Neurology (Psychiatry)
6535 N CHARLES ST, SUITE 300
TOWSON, MD 21204
Baltimore County (410) 938-5252
DR. ALVIN SANICO M.D.
Allergy & Immunology (Allergy)
6535 N CHARLES ST, PPN 200
TOWSON, MD 21204
Baltimore County (410) 583-8393
KATE R FLOWERS C.R.N.P
Nurse Practitioner (Family)
6535 N CHARLES ST, 125
BALTIMORE, MD 21204
Baltimore County (443) 849-3779
JILL FREY PIERI
Social Worker (Clinical)
6535 N CHARLES ST, SUITE 300
BALTIMORE, MD 21204
Baltimore County (410) 938-5252
BALTIMORE COLORECTAL & SURGICAL
Specialist
6535 N CHARLES ST, SUITE 445
TOWSON, MD 21204
Baltimore County (410) 494-1191
MRS. AMY CHRISTINE SCOTT LCPC
Counselor (Professional)
6535 N CHARLES ST, SUITE 300
BALTIMORE, MD 21204
Baltimore County (410) 938-5252

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 John Flowers's NPI number?

The NPI number for John Flowers is 1891735965. It was assigned to this individual provider in the NPPES registry on June 7, 2006.

Where is John Flowers located?

John Flowers practices at 6535 N Charles St Ste 125, Baltimore, MD 21204. The listed phone number is (410) 821-6260.

What is John Flowers's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is John Flowers enrolled in Medicare?

Yes. John Flowers 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.

Is John Flowers affiliated with any hospitals?

According to CMS data, John Flowers is affiliated with Greater Baltimore Medical Center.

When was this NPI record last updated?

The NPPES record for John Flowers was last updated on December 17, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.