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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CHARLES F BAHN M.D.
NPI 1609834654
Ophthalmology in Bethesda, MD

Active since May 01, 2006PECOS Enrolled
100/100
CMS Quality Rating
4848 BATTERY LN, SUITE 102, BETHESDA, MD 20814(301) 657-3022 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Charles F Bahn M.d. NPPES

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

CHARLES F BAHN M.D. (NPI 1609834654) is an individual ophthalmology provider in Bethesda, Maryland, licensed in Maryland (D0031521) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1977).

NPPES Registry Identity

NPI1609834654
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameCHARLES F BAHNCredential: M.D.
Location Address4848 BATTERY LN, SUITE 102Bethesda, MD 20814-2709
Mailing Address4848 Battery Ln, Suite 102Bethesda, MD 20814-2709 · (301) 657-3022
Phone(301) 657-3022
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 1977
Enumeration DateMay 1, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1609834654 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in MD · D0031521
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
4848 BATTERY LN, Bethesda, MD 20814
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Other Identifiers 4

Other1422MD · Blue Cross Of Md Natl Acc
Other1372912MD · Cigna
Other7458001MD · Care First Bcbs
Other410508MD · Blue Cross Of Maryland

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

Charles F Bahn 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 ID6507877305
PECOS Enrollment IDI20101202000925
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 8

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 complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
799 services760 patients
Established patient problem focused exam of visual system 92012
This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.
717 services379 patients
Exam of visual field with extended testing 92083
An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.
128 services116 patients
Imaging of optic nerve 92133
Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).
86 services85 patients
Imaging of retina 92134
Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.
58 services57 patients
Removal of recurring cataract in lens capsule using a laser 66821
This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.
34 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20814 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality100
Improvement Activities40

Reported Quality Measures

Diabetes: Eye Exam
100%26 patients5/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
99%2,713 patients4/55-star benchmark: 100%
Glaucoma Intraocular Pressure Reduction
94%138 patients
Overuse of Imaging for the Evaluation of Primary Headache
Lower rates are better for this measure.
0%34 patients
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
16%803 patients1/55-star benchmark: 98%
Primary Open-Angle Glaucoma (POAG): Reduction of Intraocular Pressure (IOP) by 15% OR Documentation of a Plan of Care
100%197 patients
Use of High-Risk Medications in Older Adults
Lower rates are better for this measure.
Patients appropriateDiagnosis: 0% · 1,261 patients
Patients totalRate: 0% · 1,261 patients
0%1,261 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 4

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

MS. CAROL KURTZ WALSH LCSW-C
Social Worker (Clinical)
4848 BATTERY LN, SUITE 202
BETHESDA, MD 20814
Montgomery County (301) 656-6420
FRAN ZAMORE ACSW, LCSW-C, LICSW
Social Worker (Clinical)
4848 BATTERY LN, SUITE 202
BETHESDA, MD 20814
Montgomery County (240) 688-9099
CHARLES F. BAHN, M.D.
Ophthalmology
4848 BATTERY LN, SUITE 102
BETHESDA, MD 20814
Montgomery County (301) 657-3022
JEREMY WIENER MSW, LCSW-C
Social Worker (Clinical)
4848 BATTERY LN, SUITE 202
BETHESDA, MD 20814
Montgomery County (202) 670-5668

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 Charles Bahn's NPI number?

The NPI number for Charles Bahn is 1609834654. It was assigned to this individual provider in the NPPES registry on May 1, 2006.

Where is Charles Bahn located?

Charles Bahn practices at 4848 Battery Ln Suite 102, Bethesda, MD 20814. The listed phone number is (301) 657-3022.

What is Charles Bahn's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Charles Bahn enrolled in Medicare?

Yes. Charles Bahn 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 Charles Bahn was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.