Active NPI 1154402139 Individual Practitioner Male Practitioner

Dr. Charles Nathan Walker , MD

Urology • Newburgh, NY

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Charles Walker, MD is a certified Urology practicing in Newburgh, NY. With approximately 26 years of clinical experience since completing medical education in 2000, Dr. Walker delivers high-quality medical care to the local community at 1200 ROUTE 300.

Dr. Walker is affiliated with Optum Medical Care Pc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, insertion of needle into vein for collection of blood sample. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1200 Route 300

Newburgh, NY 125505003

Telephone 8457036999

Fax 8457036297

Associated Practice Facility / Clinic

🏢 Crystal Run Healthcare Physicians Llp Facility NPI 1053780403

Medicare Profile & Education

Medical School

Other

Graduation Year

2000

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in Newburgh, NY

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

26 Yrs -7.3 yrs vs City Avg

City Avg: 33.3 Yrs

State Avg: 30.5 Yrs

Regional Practice Density

4 Specialists

Practicing in Newburgh, NY (1156 Statewide)

Telehealth Adoption Rate

75.0% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

19.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Walker (26 Years) 26 Yrs

Newburgh Specialty Average (33.3 Years) 33.3 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	422	292	$151.60	$143.41
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	172	172	$203.32	$188.03
36415 Insertion of needle into vein for collection of blood sample	120	105	$9.96	$8.57
87086 Bacterial colony count, urine	103	78	$8.85	$7.83
81002 Urinalysis, manual test	97	96	$3.93	$3.35
99213 Established patient office or other outpatient visit, typically 15 minutes	82	78	$111.65	$101.98
51798 Ultrasound measurement of bladder capacity after voiding	78	60	$18.83	$13.46
84153 Psa (prostate specific antigen) measurement, total	77	67	$25.70	$17.81
81001 Manual urinalysis test with examination using microscope, automated	74	55	$3.60	$3.07
52000 Diagnostic exam of bladder and urethra using an endoscope	64	60	$297.00	$276.92
87088 Bacterial urine culture	52	36	$8.09	$7.93
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	52	36	$8.65	$8.48
87077 Bacterial culture for aerobic isolates	52	36	$8.08	$7.92
51702 Simple insertion of temporary bladder tube	52	15	$81.68	$72.53
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	32	32	$137.84	$125.05
81003 Automated urinalysis test	28	25	$3.10	$2.20
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	23	21	$232.98	$196.45
55700 Biopsy of prostate gland	18	18	$407.73	$266.98
76942 Ultrasonic guidance imaging supervision and interpretation for insertion of needle	18	18	$164.38	$63.77
76872 Ultrasound scan of pelvic region through rectum	13	13	$206.77	$160.76

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	353	234	$157.30	$146.51
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	139	139	$202.88	$193.37
87086 Bacterial colony count, urine	120	88	$9.07	$7.91
99213 Established patient office or other outpatient visit, typically 15 minutes	100	92	$106.88	$104.58
36415 Insertion of needle into vein for collection of blood sample	91	85	$9.14	$8.16
81001 Manual urinalysis test with examination using microscope, automated	89	66	$3.35	$3.11
52000 Diagnostic exam of bladder and urethra using an endoscope	69	66	$295.30	$289.83
84153 Psa (prostate specific antigen) measurement, total	69	62	$20.02	$18.02
51798 Ultrasound measurement of bladder capacity after voiding	68	52	$13.51	$13.48
81002 Urinalysis, manual test	64	64	$3.48	$3.41
87077 Bacterial culture for aerobic isolates	60	38	$8.88	$7.92
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	60	38	$9.42	$8.48
51702 Simple insertion of temporary bladder tube	57	19	$82.43	$74.83
87088 Bacterial urine culture	51	34	$8.91	$7.93
81003 Automated urinalysis test	48	43	$3.24	$2.20
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	37	37	$154.76	$125.90
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	12	11	$234.15	$194.71
51700 Simple bladder irrigation and/or instillation	12	11	$93.44	$93.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	329	261	$267.93	$152.21
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	108	108	$328.30	$202.16
36415 Insertion of needle into vein for collection of blood sample	97	87	$15.06	$2.97
99213 Established patient office or other outpatient visit, typically 15 minutes	73	73	$204.07	$109.64
84153 Psa (prostate specific antigen) measurement, total	67	60	$56.65	$18.24
87086 Bacterial colony count, urine	65	60	$18.49	$7.99
81003 Automated urinalysis test	53	50	$8.68	$2.23
52000 Diagnostic exam of bladder and urethra using an endoscope	51	48	$533.46	$310.01
51798 Ultrasound measurement of bladder capacity after voiding	47	43	$60.79	$13.68
81002 Urinalysis, manual test	37	36	$3.85	$3.41
87077 Bacterial culture for aerobic isolates	26	17	$19.79	$8.02
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	24	17	$19.55	$8.57
51702 Simple insertion of temporary bladder tube	20	11	$320.00	$79.51
81001 Manual urinalysis test with examination using microscope, automated	12	12	$3.74	$3.11
84520 Urea nitrogen level to assess kidney function	12	12	$11.49	$3.91
82565 Blood creatinine level	12	12	$13.35	$5.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	368	280	$317.01	$149.62
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	138	138	$414.02	$196.25
36415 Insertion of needle into vein for collection of blood sample	124	109	$18.00	$3.00
99213 Established patient office or other outpatient visit, typically 15 minutes	91	82	$220.60	$104.98
84153 Psa (prostate specific antigen) measurement, total	82	75	$65.00	$18.39
87086 Bacterial colony count, urine	71	60	$25.00	$8.07
51798 Ultrasound measurement of bladder capacity after voiding	71	66	$110.00	$12.74
81003 Automated urinalysis test	48	46	$10.00	$2.25
52000 Diagnostic exam of bladder and urethra using an endoscope	43	40	$600.23	$277.66
51702 Simple insertion of temporary bladder tube	41	21	$320.00	$77.88
87077 Bacterial culture for aerobic isolates	38	28	$25.00	$8.08
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	30	27	$25.00	$8.65
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	27	19	$200.00	$85.65
81001 Manual urinalysis test with examination using microscope, automated	26	23	$10.00	$3.17
99221 Initial hospital inpatient care per day, typically 30 minutes	23	21	$285.00	$123.45
U0003 Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high throughput technologies as described by cms-2020-01-r	16	12	$250.00	$75.00
U0005 Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, cdc or non-cdc, making use of high throughput technologies, completed within	15	12	$60.00	$25.00
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	13	$510.00	$198.46
84520 Urea nitrogen level to assess kidney function	13	13	$13.00	$3.95
82565 Blood creatinine level	13	13	$15.00	$5.12
81002 Urinalysis, manual test	12	12	$9.00	$3.48
51741 Electronic assessment of bladder emptying	11	11	$230.00	$9.09

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	216	129	$260.37	$118.75
99213 Established patient office or other outpatient visit, typically 15 minutes	114	98	$182.24	$82.58
36415 Insertion of needle into vein for collection of blood sample	86	69	$18.00	$2.95
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	81	81	$392.22	$180.34
51798 Ultrasound measurement of bladder capacity after voiding	74	66	$110.00	$11.77
87086 Bacterial colony count, urine	51	45	$25.00	$8.03
81001 Manual urinalysis test with examination using microscope, automated	48	46	$10.00	$3.15
84153 Psa (prostate specific antigen) measurement, total	45	39	$65.00	$18.29
81002 Urinalysis, manual test	43	40	$9.00	$3.45
52000 Diagnostic exam of bladder and urethra using an endoscope	41	32	$600.00	$236.83
87077 Bacterial culture for aerobic isolates	25	19	$25.00	$8.03
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	24	19	$25.00	$8.59
84520 Urea nitrogen level to assess kidney function	18	17	$13.00	$3.93
82565 Blood creatinine level	18	17	$15.00	$5.09

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	189	138	$246.61	$115.43
51798 Ultrasound measurement of bladder capacity after voiding	109	93	$110.00	$13.86
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	108	108	$373.38	$173.10
99213 Established patient office or other outpatient visit, typically 15 minutes	92	76	$169.89	$79.22
81002 Urinalysis, manual test	62	56	$9.00	$3.37
36415 Insertion of needle into vein for collection of blood sample	59	48	$18.00	$2.90
87086 Bacterial colony count, urine	58	52	$25.00	$8.79
52000 Diagnostic exam of bladder and urethra using an endoscope	38	36	$600.00	$206.11
87077 Bacterial culture for aerobic isolates	31	18	$25.00	$8.79
81001 Manual urinalysis test with examination using microscope, automated	31	29	$10.00	$3.36
84153 Psa (prostate specific antigen) measurement, total	26	24	$65.00	$20.03
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	24	18	$25.00	$9.42
51741 Electronic assessment of bladder emptying	21	19	$230.00	$9.68
84520 Urea nitrogen level to assess kidney function	17	13	$13.00	$4.30
82565 Blood creatinine level	17	13	$15.00	$5.58
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$250.00	$115.94

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	89	69	$230.67	$111.70
51798 Ultrasound measurement of bladder capacity after voiding	64	52	$110.00	$17.14
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	47	47	$353.72	$170.85
99213 Established patient office or other outpatient visit, typically 15 minutes	35	30	$156.71	$76.83
81002 Urinalysis, manual test	30	29	$9.00	$3.41
36415 Insertion of needle into vein for collection of blood sample	28	25	$18.00	$2.94
87086 Bacterial colony count, urine	24	18	$25.00	$9.76
52000 Diagnostic exam of bladder and urethra using an endoscope	14	14	$600.00	$168.12
84153 Psa (prostate specific antigen) measurement, total	11	11	$65.00	$22.26

Medical Specialties & State Licenses

CMS Verified: 2020-10-16

Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License NY 294066

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Hospital & Practice Group Affiliations

Optum Medical Care Pc

90 S Bedford Rd, Mount Kisco, NY 105493412

Phone: 9142411050

Practice Associates & Co-Workers

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

40 Associated Practitioners

Richard Escano , PT

Physical Therapist

NPI 1003018722

Physical Therapist

Dr. Rafeel Syed , MD

Internal Medicine - Nephrology

NPI 1003190711

Doctor of Medicine (M.D.)

Alexandriah Sabarese , AGACNP-BC

Nurse Practitioner - Acute Care

NPI 1003460338

Adult-Gerontology Acute Care Nurse Practitioner (Board Certified)

Dr. Nancy Linneman , MD

Internal Medicine - Pulmonary Disease

NPI 1003816604

Doctor of Medicine (M.D.)

Chiquita Houston-Armstrong , NP

Nurse Practitioner - Family

NPI 1003826132

Nurse Practitioner

Dr. Peggy Nelson , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1013000629

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

11 Historical Events

📍

Updated Practice Location October 16, 2020

Registered at 1200 ROUTE 300, NEWBURGH, NY 125505003 (Tel: 8457036999)

📍

Updated Practice Location August 07, 2020

Registered at 855 STATE ROUTE 17M, MONROE, NY 109501600 (Tel: 8457036999)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 07, 2020

Urology (License #294066 in NY)

📍

Updated Practice Location April 20, 2018

Registered at 155 CRYSTAL RUN RD, MIDDLETOWN, NY 109414028 (Tel: 8457036999)

📍

Updated Business Mailing Address April 20, 2018

Registered at 155 CRYSTAL RUN RD, MIDDLETOWN, NY 109414057 (Tel: 8457036999)

✅

NPI Profile Active July 02, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location July 02, 2014

Registered at 789 HOWARD AVE, FITKIN 300, NEW HAVEN, CT 065191304 (Tel: 2034644701)

📍

Updated Business Mailing Address July 02, 2014

Registered at 789 HOWARD AVENUE, FITKIN 300, NEW HAVEN, CT 065208058 (Tel: 2034644701)

👤

Provider Name / Credentials Updated July 02, 2014

Recorded as CHARLES WALKER, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 02, 2014

Urology (License #044327 in CT)

🟢

Initial NPI Registration & Enumeration October 18, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1154402139

Entity Type:

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

Enumeration Date: October 18, 2006

Last Update: October 16, 2020

Sole Proprietor: No

Update or Correct Profile

Mailing Address

155 Crystal Run Rd

Middletown, NY 109414057

Phone: 8457036999

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.