Active NPI 1801897897 Individual Practitioner Male Practitioner

Dr. Ronald Keith Willenborg , MD

Internal Medicine • Upper Montclair, NJ

Professional Overview & Biography Verified Profile Summary

Dr. Ronald Willenborg, MD is a registered healthcare professional specializing in Internal Medicine in Upper Montclair, NJ. Practice services are available at 543 VALLEY RD STE 4 under active NPI credentials.

Frequently performed procedures and clinical services include insertion of needle into vein for collection of blood sample, established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

543 Valley Rd Ste 4

Upper Montclair, NJ 070431844

Telephone 9737466466

Fax 9737460312

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Upper Montclair, NJ

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 10.5 Yrs

State Avg: 30.1 Yrs

Regional Practice Density

2 Specialists

Practicing in Upper Montclair, NJ (4957 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

20.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2020)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	134	124	$10.00	$2.94
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	92	86	$130.00	$121.63
99213 Established patient office or other outpatient visit, typically 15 minutes	78	63	$90.00	$84.20
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	31	31	$185.00	$128.48
93000 Routine ekg using at least 12 leads including interpretation and report	29	29	$35.00	$19.42

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	583	239	$10.00	$2.93
99213 Established patient office or other outpatient visit, typically 15 minutes	408	175	$89.57	$82.33
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	372	186	$129.64	$119.69
G0008 Administration of influenza virus vaccine	165	165	$32.00	$18.67
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	135	135	$185.00	$128.62
93000 Routine ekg using at least 12 leads including interpretation and report	116	111	$35.00	$19.16
90682 Influenza vaccine, quadrivalent derived from recombinant dna	108	108	$57.87	$54.89
90662 Influenza vaccine split virus, preservative free	44	44	$56.73	$54.76
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	41	30	$60.00	$50.64
G0009 Administration of pneumococcal vaccine	30	30	$32.00	$18.67
90670 Pneumococcal vaccine for injection into muscle	21	21	$215.71	$207.41
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	14	14	$215.00	$182.45
G0403 Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report	11	11	$35.00	$19.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	696	285	$10.00	$2.93
99213 Established patient office or other outpatient visit, typically 15 minutes	487	204	$85.00	$76.40
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	454	225	$125.00	$112.11
G0008 Administration of influenza virus vaccine	210	208	$32.00	$23.23
90662 Influenza vaccine split virus, preservative free	200	198	$54.90	$51.94
93000 Routine ekg using at least 12 leads including interpretation and report	173	155	$35.00	$18.07
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	164	164	$185.00	$121.88
G0009 Administration of pneumococcal vaccine	49	49	$32.00	$23.23
90670 Pneumococcal vaccine for injection into muscle	39	39	$207.18	$198.12
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	23	21	$60.00	$46.61
81002 Urinalysis, manual test	14	13	$12.00	$3.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	696	295	$10.00	$2.92
99213 Established patient office or other outpatient visit, typically 15 minutes	492	213	$85.00	$75.08
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	441	234	$125.00	$110.45
G0008 Administration of influenza virus vaccine	205	203	$31.57	$29.01
90662 Influenza vaccine split virus, preservative free	199	199	$51.19	$47.90
93000 Routine ekg using at least 12 leads including interpretation and report	164	151	$35.00	$17.96
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	160	160	$185.00	$119.44
G0009 Administration of pneumococcal vaccine	36	36	$30.72	$29.01
90670 Pneumococcal vaccine for injection into muscle	33	33	$196.21	$185.69
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	20	$60.00	$45.70
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	17	17	$215.00	$169.90
G0403 Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report	15	15	$35.00	$18.14

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License NJ 25MA03592100

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

3213803 (NJ)

Commercial Insurance / Payer ID Aetna

0004574647 (NJ)

Commercial Insurance / Payer ID United Healthcare

001130735 (NJ)

Commercial Insurance / Payer ID Empire Blue Shield

31D08 (NY)

Commercial Insurance / Payer ID Health Net

OK0464 (NJ)

Commercial Insurance / Payer ID Cigna

8971366 (NJ)

Commercial Insurance / Payer ID First Health

NJ3106 (NJ)

Commercial Insurance / Payer ID Railroad Medicare

110009806

Commercial Insurance / Payer ID Oxford Health

P3601332 (NJ)

Commercial Insurance / Payer ID Horizon Blue Cross/shield

J2407 (NJ)

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. Imranjot Sekhon , MD

Internal Medicine

NPI 1700535192

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 14, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location July 14, 2010

Registered at 543 VALLEY RD STE 4, UPPER MONTCLAIR, NJ 070431844 (Tel: 9737466466)

📍

Updated Business Mailing Address July 14, 2010

Registered at 543 VALLEY RD STE 4, UPPER MONTCLAIR, NJ 070431844 (Tel: 9737466466)

👤

Provider Name / Credentials Updated July 14, 2010

Recorded as RONALD WILLENBORG, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 14, 2010

Internal Medicine (License #25MA03592100 in NJ)

🟢

Initial NPI Registration & Enumeration August 02, 2005

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: 1801897897

Entity Type:

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

Enumeration Date: August 02, 2005

Last Update: July 14, 2010

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

543 Valley Rd Ste 4

Upper Montclair, NJ 070431844

Phone: 9737466466

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.