Active NPI 1013984848 Individual Practitioner Male Practitioner

Dr. John C Baer , MD

Ophthalmology • Baltimore, MD

Professional Overview & Biography Verified Profile Summary

Dr. John Baer, MD is a certified Ophthalmology practicing in Baltimore, MD. With approximately 44 years of clinical experience since graduating from University Of Maryland School Of Medicine in 1982, Dr. Baer delivers high-quality medical care to the local community at 600 N WOLFE ST.

Dr. Baer is affiliated with Johns Hopkins University and does not directly accept Medicare assignment.

Frequently performed procedures and clinical services include established patient complete exam of visual system, photography of the retina, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

600 N Wolfe St

Baltimore, MD 212870005

Telephone 4109555000

Associated Practice Facility / Clinic

🏢 Johns Hopkins University Facility NPI 1801891080

Medicare Profile & Education

Medical School

University Of Maryland School Of Medicine

Graduation Year

1982

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Baltimore, MD

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

44 Yrs +21.4 yrs vs City Avg

City Avg: 22.6 Yrs

State Avg: 28.5 Yrs

Regional Practice Density

222 Specialists

Practicing in Baltimore, MD (624 Statewide)

Telehealth Adoption Rate

0.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

49.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Baer (44 Years) 44 Yrs

Baltimore Specialty Average (22.6 Years) 22.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	34	34	$230.46	$117.59
92250 Photography of the retina	32	32	$67.68	$34.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	19	19	$242.88	$121.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	933	911	$196.35	$121.81
92250 Photography of the retina	461	448	$88.71	$35.84
92083 Exam of visual field with extended testing	202	198	$109.37	$60.26
76519 Ultrasound of eye for determination of lens power	187	86	$116.22	$44.08
92133 Imaging of optic nerve	152	151	$87.49	$32.33
99213 Established patient office or other outpatient visit, typically 15 minutes	137	101	$131.96	$87.35
66984 Removal of cataract with insertion of lens	96	67	$1782.84	$519.28
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	89	79	$241.85	$122.10
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	83	81	$103.27	$53.90
92004 New patient complete exam of visual system	81	81	$216.95	$146.80
92134 Imaging of retina	51	45	$87.42	$37.14
92012 Established patient problem focused exam of visual system	36	33	$128.55	$85.36
66821 Removal of recurring cataract in lens capsule using a laser	29	27	$673.44	$315.11
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	27	27	$43.29	$21.86
66982 Complex removal of cataract with insertion of prosthetic lens	25	23	$2311.70	$706.35
92082 Exam of visual field with intermediate testing	14	14	$85.33	$44.43
76514 Ultrasound scan of cornea to determine thickness	13	13	$51.25	$10.45
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$323.76	$159.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	1,238	1,173	$172.00	$125.47
92250 Photography of the retina	504	492	$100.00	$36.72
76519 Ultrasound of eye for determination of lens power	219	93	$131.51	$45.10
92083 Exam of visual field with extended testing	166	161	$102.00	$61.70
99213 Established patient office or other outpatient visit, typically 15 minutes	155	100	$98.75	$89.55
92133 Imaging of optic nerve	149	145	$100.00	$33.33
66984 Removal of cataract with insertion of lens	106	78	$2500.00	$544.49
92004 New patient complete exam of visual system	91	91	$206.00	$151.21
92012 Established patient problem focused exam of visual system	44	41	$118.18	$86.21
66821 Removal of recurring cataract in lens capsule using a laser	41	35	$760.00	$319.75
92134 Imaging of retina	37	32	$100.00	$37.24
92020 Examination of cornea and iris using lens device and slit lamp	24	24	$75.00	$27.44
66982 Complex removal of cataract with insertion of prosthetic lens	22	18	$3005.00	$741.72
65855 Laser repair to improve eye fluid flow	21	14	$1310.00	$216.86
92082 Exam of visual field with intermediate testing	17	17	$85.00	$44.87
76514 Ultrasound scan of cornea to determine thickness	16	16	$60.00	$10.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	970	922	$172.04	$128.76
92250 Photography of the retina	397	388	$100.01	$39.33
76519 Ultrasound of eye for determination of lens power	302	128	$130.89	$46.63
66984 Removal of cataract with insertion of lens	162	113	$2500.00	$560.98
92083 Exam of visual field with extended testing	132	129	$102.00	$63.75
99213 Established patient office or other outpatient visit, typically 15 minutes	118	87	$99.00	$91.73
92133 Imaging of optic nerve	115	113	$100.00	$34.68
92004 New patient complete exam of visual system	71	71	$206.25	$152.94
92012 Established patient problem focused exam of visual system	48	43	$117.40	$90.54
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	36	36	$146.00	$131.47
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	36	36	$224.00	$170.48
92134 Imaging of retina	30	29	$100.00	$38.69
66821 Removal of recurring cataract in lens capsule using a laser	29	28	$760.00	$329.74
66982 Complex removal of cataract with insertion of prosthetic lens	29	24	$3005.00	$712.96
76514 Ultrasound scan of cornea to determine thickness	17	17	$60.00	$10.89
66821 Removal of recurring cataract in lens capsule using a laser	14	12	$760.00	$343.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	980	944	$172.00	$128.82
92250 Photography of the retina	397	387	$100.00	$45.46
76519 Ultrasound of eye for determination of lens power	171	112	$159.59	$55.31
66984 Removal of cataract with insertion of lens	146	103	$2500.00	$567.32
92133 Imaging of optic nerve	116	114	$100.00	$35.09
92083 Exam of visual field with extended testing	111	107	$102.00	$63.45
99213 Established patient office or other outpatient visit, typically 15 minutes	111	83	$99.00	$76.51
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	57	57	$223.68	$169.28
92012 Established patient problem focused exam of visual system	47	39	$120.00	$89.66
92134 Imaging of retina	44	35	$100.00	$39.93
66821 Removal of recurring cataract in lens capsule using a laser	42	35	$760.00	$328.12
66982 Complex removal of cataract with insertion of prosthetic lens	17	15	$3005.00	$775.51
92082 Exam of visual field with intermediate testing	14	14	$85.00	$48.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	13	$146.00	$113.04

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	1,301	1,214	$171.98	$127.45
92250 Photography of the retina	534	511	$100.00	$50.54
92083 Exam of visual field with extended testing	180	178	$101.99	$63.99
76519 Ultrasound of eye for determination of lens power	177	121	$160.17	$53.80
92133 Imaging of optic nerve	159	159	$100.00	$34.27
66984 Removal of cataract with insertion of lens	151	112	$2500.00	$654.65
99213 Established patient office or other outpatient visit, typically 15 minutes	109	84	$99.45	$74.64
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	102	102	$223.65	$166.95
92012 Established patient problem focused exam of visual system	79	71	$121.25	$89.56
92134 Imaging of retina	44	41	$100.00	$39.74
66821 Removal of recurring cataract in lens capsule using a laser	42	36	$760.00	$325.60
92082 Exam of visual field with intermediate testing	16	16	$85.00	$47.13
66982 Complex removal of cataract with insertion of prosthetic lens	15	14	$3005.00	$823.32
92004 New patient complete exam of visual system	14	14	$209.86	$158.96
92020 Examination of cornea and iris using lens device and slit lamp	13	13	$74.62	$27.74
76514 Ultrasound scan of cornea to determine thickness	11	11	$60.00	$12.33

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	1,219	1,166	$172.00	$125.65
92250 Photography of the retina	485	473	$100.00	$56.44
76519 Ultrasound of eye for determination of lens power	270	185	$160.07	$57.97
66984 Removal of cataract with insertion of lens	219	155	$2500.00	$643.21
92083 Exam of visual field with extended testing	183	176	$102.00	$63.31
92133 Imaging of optic nerve	137	136	$100.00	$34.41
99213 Established patient office or other outpatient visit, typically 15 minutes	111	75	$99.00	$72.61
92012 Established patient problem focused exam of visual system	80	69	$119.81	$88.53
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	72	70	$40.00	$20.76
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	60	60	$223.97	$164.74
92004 New patient complete exam of visual system	52	52	$206.69	$154.92
66982 Complex removal of cataract with insertion of prosthetic lens	52	39	$3005.00	$799.63
66821 Removal of recurring cataract in lens capsule using a laser	43	35	$760.00	$310.75
92134 Imaging of retina	24	24	$100.00	$39.51
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	18	18	$146.00	$104.60
92082 Exam of visual field with intermediate testing	17	17	$85.00	$47.43
92020 Examination of cornea and iris using lens device and slit lamp	15	15	$75.00	$26.75
76514 Ultrasound scan of cornea to determine thickness	14	14	$60.00	$14.47

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
92014 Established patient complete exam of visual system	1,297	1,239	$140.07	$122.10
92250 Photography of the retina	519	503	$100.00	$64.54
76519 Ultrasound of eye for determination of lens power	264	181	$160.30	$64.03
66984 Removal of cataract with insertion of lens	239	158	$2500.00	$636.12
92083 Exam of visual field with extended testing	185	179	$102.00	$63.18
92133 Imaging of optic nerve	164	163	$100.00	$34.04
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	134	132	$40.00	$19.34
92004 New patient complete exam of visual system	73	73	$170.00	$146.23
92012 Established patient problem focused exam of visual system	73	54	$95.00	$84.92
66821 Removal of recurring cataract in lens capsule using a laser	60	47	$760.00	$316.24
99213 Established patient office or other outpatient visit, typically 15 minutes	56	46	$95.00	$71.51
66982 Complex removal of cataract with insertion of prosthetic lens	34	27	$3005.00	$793.60
92134 Imaging of retina	26	22	$99.42	$38.82
92082 Exam of visual field with intermediate testing	21	21	$85.00	$45.57
76514 Ultrasound scan of cornea to determine thickness	18	18	$60.00	$14.30
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	13	$60.00	$43.31

Medical Specialties & State Licenses

CMS Verified: 2024-12-12

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License MD D0029740

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.

Ophthalmology

NUCC Taxonomy Code: 207W00000X

State License PA MD418865

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

D0029740 (MD)

Commercial Insurance / Payer ID Carefirst Bc Bs

1308JC (MD)

Commercial Insurance / Payer ID Aetna Hmo

3190310 (PA)

Commercial Insurance / Payer ID Aetna Maryland Offices

3821719 (MD)

Commercial Insurance / Payer ID Capital Blue Cross

50000867 (PA)

Commercial Insurance / Payer ID Aetna Ppo

4121977 (PA)

Commercial Insurance / Payer ID Railroad Medicare

180044592 (PA)

Commercial Insurance / Payer ID Keystone Hpc

50000867 (PA)

Commercial Insurance / Payer ID Carefirst Blue Choice

T274 0001 (MD)

Commercial Insurance / Payer ID Railroad Medicare

P00050680 (MD)

Hospital & Practice Group Affiliations

Johns Hopkins University

10751 Falls Rd, Lutherville, MD 210934517

Phone: 4109553663

Johns Hopkins University

6201 Greenleigh Ave, Middle River, MD 212202004

Johns Hopkins University

1800 Orleans St, Baltimore, MD 212870010

Phone: 4109555000

Johns Hopkins University

4940 Eastern Ave, Baltimore, MD 212242735

Phone: 4105500100

Secondary Practice Locations

250 E Walnut St

Hanover, PA 173312534

Phone: 7176326063

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Dr. Vanessa Vasquez , MD

Emergency Medicine

NPI 1003131749

Doctor of Medicine (M.D.)

Dr. Suman Paul , MBBS, PhD

Internal Medicine - Medical Oncology

NPI 1003253360

Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.), Doctor of Philosophy (Ph.D.)

Dr. Mian Khalid , MD

Internal Medicine - Gastroenterology

NPI 1003310152

Doctor of Medicine (M.D.)

Jeff Ehresman

Student in an Organized Health Care Education/Training Program

NPI 1003322801

Dr. Kaitlyn Frazier , MD

Otolaryngology

NPI 1003347246

Doctor of Medicine (M.D.)

Evan Fox

Radiology - Neuroradiology

NPI 1003437583

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events

📍

Updated Practice Location December 12, 2024

Registered at 600 N WOLFE ST, BALTIMORE, MD 212870005 (Tel: 4109555000)

📍

Updated Business Mailing Address December 12, 2024

Registered at 6201 GREENLEIGH AVE, BALTIMORE, MD 212202004

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 12, 2024

Ophthalmology (License #MD418865 in PA)

✅

NPI Profile Active October 16, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location October 16, 2007

Registered at 250 E WALNUT ST, HANOVER, PA 173312534 (Tel: 7176326063)

📍

Updated Business Mailing Address October 16, 2007

Registered at 250 E WALNUT ST, HANOVER, PA 173312534 (Tel: 7176326063)

👤

Provider Name / Credentials Updated October 16, 2007

Recorded as JOHN BAER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 16, 2007

Ophthalmology (License #MD418865 in PA)

🟢

Initial NPI Registration & Enumeration March 01, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1013984848

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: March 01, 2006

Last Update: December 12, 2024

Sole Proprietor: No

Update or Correct Profile

Mailing Address

6201 Greenleigh Ave

Baltimore, MD 212202004

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.