Active NPI 1568497824 Individual Practitioner Male Practitioner

Dr. William F Grella , MD

Internal Medicine • Wayne, NJ

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. William Grella, MD is a certified Internal Medicine practicing in Wayne, NJ. With approximately 29 years of clinical experience since completing medical education in 1997, Dr. Grella delivers high-quality medical care to the local community at 224 HAMBURG TPKE.

Dr. Grella is affiliated with Integrated Hospital Medicine Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least, initial hospital care with moderate level of medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

224 Hamburg Tpke
Rm. 4023

Wayne, NJ 074702111

Telephone 9739563357

Fax 9733894050

Associated Practice Facility / Clinic

🏢 St. Joseph's Wayne Hospital Facility NPI 1598760829

Medicare Profile & Education

Medical School

Other

Graduation Year

1997

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Wayne, NJ

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

29 Yrs -3.7 yrs vs City Avg

City Avg: 32.7 Yrs

State Avg: 30.1 Yrs

Regional Practice Density

47 Specialists

Practicing in Wayne, NJ (4957 Statewide)

Telehealth Adoption Rate

25.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

51.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Grella (29 Years) 29 Yrs

Wayne Specialty Average (32.7 Years) 32.7 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	4,651	326	$285.00	$125.34
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,294	111	$155.00	$83.54
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	1,276	185	$155.00	$79.98
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	470	330	$430.00	$183.32
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	316	130	$225.00	$115.80
99306 Initial nursing facility visit, typically 45 minutes per day	265	185	$360.00	$194.09
99239 Hospital discharge day management, more than 30 minutes	167	122	$235.00	$121.86
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$290.00	$138.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	4,842	268	$285.00	$127.67
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	382	301	$430.00	$186.17
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	377	75	$155.00	$80.75
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	295	93	$225.00	$115.49
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	214	51	$155.00	$84.90
99239 Hospital discharge day management, more than 30 minutes	180	153	$235.00	$123.68
99306 Initial nursing facility visit, typically 45 minutes per day	166	118	$360.00	$195.50
99231 Follow-up hospital inpatient care per day, typically 15 minutes	127	70	$90.00	$53.23
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	53	46	$290.00	$139.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,092	172	$321.48	$109.61
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	159	144	$603.91	$213.04
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	114	65	$231.23	$76.62
99239 Hospital discharge day management, more than 30 minutes	49	47	$324.18	$114.14
99231 Follow-up hospital inpatient care per day, typically 15 minutes	42	34	$123.33	$41.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	934	180	$264.09	$111.79
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	307	102	$212.96	$78.07
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	183	159	$486.31	$217.60
99239 Hospital discharge day management, more than 30 minutes	67	61	$317.16	$116.57
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	51	51	$336.57	$147.74
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	27	21	$207.48	$100.24
99231 Follow-up hospital inpatient care per day, typically 15 minutes	19	17	$125.00	$41.62
99306 Initial nursing facility visit, typically 45 minutes per day	16	16	$346.13	$181.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,406	175	$200.00	$78.85
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,228	203	$225.00	$114.14
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	114	104	$325.00	$220.07
99239 Hospital discharge day management, more than 30 minutes	94	89	$300.00	$118.08
99306 Initial nursing facility visit, typically 45 minutes per day	43	36	$300.00	$179.59
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	34	32	$150.00	$76.25
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	22	19	$200.00	$101.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	2,097	273	$200.00	$78.12
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	591	167	$225.00	$111.61
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	254	104	$150.00	$74.85
99239 Hospital discharge day management, more than 30 minutes	129	114	$300.00	$116.06
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	120	102	$325.00	$216.26
99306 Initial nursing facility visit, typically 45 minutes per day	69	60	$300.00	$177.77
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	41	31	$200.00	$99.47
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	26	25	$200.00	$138.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,312	208	$200.00	$76.05
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,153	228	$225.00	$108.90
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	457	224	$150.00	$73.10
99306 Initial nursing facility visit, typically 45 minutes per day	318	248	$300.00	$173.34
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	197	123	$200.00	$96.80
99239 Hospital discharge day management, more than 30 minutes	103	99	$300.00	$112.32
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	93	91	$325.00	$210.73
99497 Advance care planning, first 30 minutes	85	80	$260.00	$82.83
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	53	51	$200.00	$137.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	1,244	337	$150.00	$71.77
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,185	180	$225.00	$107.06
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,164	175	$200.02	$74.15
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	489	220	$200.00	$94.72
99306 Initial nursing facility visit, typically 45 minutes per day	447	349	$300.00	$171.69
99497 Advance care planning, first 30 minutes	154	135	$260.00	$78.80
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	105	103	$325.00	$208.27
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes	101	94	$200.99	$134.57
99239 Hospital discharge day management, more than 30 minutes	96	92	$300.00	$111.38
99316 Nursing facility discharge management, more than 30 minutes	18	18	$265.00	$109.33
99315 Nursing facility discharge day management, 30 minutes or less	15	14	$200.00	$75.93

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License NY 221446

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.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License NJ 25MA07304300

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

8898804 (NJ)

Hospital & Practice Group Affiliations

Integrated Hospital Medicine Llc

25 Pocono Rd, Denville, NJ 078342954

Phone: 9786256000

Integrated Hospital Medicine Llc

400 W Blackwell St, Dover, NJ 078012525

Phone: 9735373816

Integrated Hospital Medicine Llc

350 Boulevard, Passaic, NJ 070552840

Phone: 9736367200

Integrated Hospital Medicine Llc

130 Powerville Rd, Boonton, NJ 070058705

Phone: 9739893085

Practice Associates & Co-Workers

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

3 Associated Practitioners

Khristine Vendiola , APN-C

Nurse Practitioner - Primary Care

NPI 1083086334

APNC

Silvia Hernandez , RN, MSN, APN-C

Nurse Practitioner - Adult Health

NPI 1437599354

Registered Nurse, Master of Science in Nursing, APNC

John Ahn , NP-C

Nurse Practitioner - Adult Health

NPI 1912416165

Nurse Practitioner (Certified)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active December 03, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location December 03, 2013

Registered at 224 HAMBURG TPKE, RM. 4023, WAYNE, NJ 074702111 (Tel: 9739563357)

📍

Updated Business Mailing Address December 03, 2013

Registered at 224 HAMBURG TPKE, RM. 4023, WAYNE, NJ 074702111 (Tel: 9739563357)

👤

Provider Name / Credentials Updated December 03, 2013

Recorded as WILLIAM GRELLA, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 03, 2013

Internal Medicine (License #221446 in NY)

🟢

Initial NPI Registration & Enumeration July 12, 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: 1568497824

Entity Type:

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

Enumeration Date: July 12, 2006

Last Update: December 03, 2013

Sole Proprietor: No

Update or Correct Profile

Mailing Address

224 Hamburg Tpke, Rm. 4023

Wayne, NJ 074702111

Phone: 9739563357

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.