Active NPI 1215900105 Individual Practitioner Female Practitioner

Dr. Diana Carol Mcnulty , MD

Internal Medicine • Freeport, IL

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Diana Mcnulty, MD is a certified Internal Medicine practicing in Freeport, IL. With approximately 35 years of clinical experience since graduating from Oregon Health Sciences University School Of Medicine in 1991, Dr. Mcnulty delivers high-quality medical care to the local community at 1010 FAIRWAY DR.

Dr. Mcnulty maintains professional affiliations with Freeport Regional Health Care Foundation, Select Rehabilitation, Llc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include insertion of needle into vein for collection of blood sample, established patient outpatient office visit, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1010 Fairway Dr

Freeport, IL 610326600

Telephone 8155997880

Associated Practice Facility / Clinic

🏢 Jane Addams Community Mental Health Center Facility NPI 1336623453

Medicare Profile & Education

Medical School

Oregon Health Sciences University School Of Medicine

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Freeport, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs Matches City Avg

City Avg: 35.0 Yrs

State Avg: 28.9 Yrs

Regional Practice Density

9 Specialists

Practicing in Freeport, IL (7544 Statewide)

Telehealth Adoption Rate

11.1% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

65.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Mcnulty (35 Years) 35 Yrs

Freeport Specialty Average (35.0 Years) 35.0 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
36415 Insertion of needle into vein for collection of blood sample	586	340	$26.00	$8.58
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	440	205	$205.59	$122.34
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	397	202	$41.00	$15.78
G0008 Administration of influenza virus vaccine	179	178	$18.18	$16.03
90662 Influenza vaccine split virus, preservative free	172	171	$73.76	$72.07
99213 Established patient office or other outpatient visit, typically 15 minutes	96	76	$140.90	$86.22
71046 X-ray of chest, 2 views	44	40	$201.00	$30.62
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	33	33	$175.00	$124.12
73502 X-ray of hip, 2-3 views	19	19	$188.00	$43.01
73562 X-ray of knee, 3 views	18	17	$203.50	$39.60
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	18	18	$106.00	$5.82
73630 X-ray of foot, minimum of 3 views	17	15	$177.00	$31.36
74018 X-ray of abdomen, 1 view	15	14	$162.00	$27.50
72100 X-ray of lower and sacral spine, 2-3 views	15	15	$203.00	$35.79

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	537	247	$199.00	$123.54
36415 Insertion of needle into vein for collection of blood sample	319	181	$26.00	$8.36
99213 Established patient office or other outpatient visit, typically 15 minutes	77	62	$136.00	$85.48
85610 Blood test, clotting time	49	12	$48.00	$4.20
G0008 Administration of influenza virus vaccine	45	44	$42.00	$29.66
90662 Influenza vaccine split virus, preservative free	43	42	$70.00	$68.60
71046 X-ray of chest, 2 views	26	25	$196.38	$30.39
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	21	19	$106.00	$5.97
73502 X-ray of hip, 2-3 views	20	18	$188.00	$44.12
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	15	$311.00	$174.19
G0009 Administration of pneumococcal vaccine	13	13	$36.00	$29.66
73562 X-ray of knee, 3 views	11	11	$234.00	$51.78

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	528	243	$192.00	$124.38
36415 Insertion of needle into vein for collection of blood sample	311	186	$26.00	$2.94
99213 Established patient office or other outpatient visit, typically 15 minutes	119	96	$131.00	$88.76
G0008 Administration of influenza virus vaccine	43	42	$27.49	$25.73
71046 X-ray of chest, 2 views	39	35	$201.00	$32.37
90662 Influenza vaccine split virus, preservative free	37	37	$70.00	$68.54
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	26	26	$300.00	$177.28
G0009 Administration of pneumococcal vaccine	24	24	$36.00	$27.10
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	18	17	$106.00	$5.76
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	16	16	$235.00	$132.30
73502 X-ray of hip, 2-3 views	16	14	$188.00	$42.85
73562 X-ray of knee, 3 views	15	15	$224.40	$46.73
69209 Removal of impacted ear wax by washing	15	13	$63.33	$14.74

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	535	255	$185.39	$125.43
36415 Insertion of needle into vein for collection of blood sample	336	199	$25.00	$2.99
99213 Established patient office or other outpatient visit, typically 15 minutes	120	94	$126.00	$89.38
85610 Blood test, clotting time	76	11	$46.00	$4.29
G0008 Administration of influenza virus vaccine	50	50	$25.00	$16.21
90662 Influenza vaccine split virus, preservative free	42	42	$66.90	$65.06
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	38	38	$292.00	$165.30
G0009 Administration of pneumococcal vaccine	32	32	$34.00	$15.69
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	30	28	$289.00	$177.87
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	24	24	$102.00	$6.15
90670 Pneumococcal vaccine for injection into muscle	22	22	$561.00	$226.83
71046 X-ray of chest, 2 views	20	20	$195.00	$32.10
73562 X-ray of knee, 3 views	17	16	$214.59	$47.36
69209 Removal of impacted ear wax by washing	15	13	$59.20	$15.06
72100 X-ray of lower and sacral spine, 2-3 views	13	13	$197.00	$37.83
73502 X-ray of hip, 2-3 views	11	11	$182.00	$44.19

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	378	201	$178.00	$106.27
36415 Insertion of needle into vein for collection of blood sample	292	166	$25.00	$2.98
99213 Established patient office or other outpatient visit, typically 15 minutes	191	115	$121.00	$73.07
85610 Blood test, clotting time	117	18	$46.00	$4.25
G0008 Administration of influenza virus vaccine	57	56	$25.00	$16.14
90662 Influenza vaccine split virus, preservative free	47	46	$64.81	$60.46
G0009 Administration of pneumococcal vaccine	39	39	$34.00	$16.05
90670 Pneumococcal vaccine for injection into muscle	27	27	$561.00	$220.60
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$197.00	$106.10
71046 X-ray of chest, 2 views	22	21	$195.00	$31.49
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	21	21	$278.00	$144.84
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	16	16	$102.00	$8.08
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	15	15	$228.00	$118.69

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	406	186	$178.00	$104.94
36415 Insertion of needle into vein for collection of blood sample	210	137	$25.00	$2.94
99213 Established patient office or other outpatient visit, typically 15 minutes	159	102	$121.00	$70.85
85610 Blood test, clotting time	141	27	$46.00	$4.28
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	55	53	$278.00	$139.92
G0008 Administration of influenza virus vaccine	49	48	$25.00	$15.85
90662 Influenza vaccine split virus, preservative free	41	40	$63.95	$54.83
G0009 Administration of pneumococcal vaccine	34	34	$34.00	$15.85
71046 X-ray of chest, 2 views	26	26	$195.00	$30.07
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	26	24	$102.00	$7.67
90670 Pneumococcal vaccine for injection into muscle	24	24	$561.00	$208.52
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$197.00	$105.79
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	19	19	$193.00	$111.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	102	77	$121.00	$70.16
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	82	58	$178.00	$103.49
36415 Insertion of needle into vein for collection of blood sample	57	44	$25.00	$2.91
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$197.00	$92.00
G0008 Administration of influenza virus vaccine	21	21	$25.00	$18.47
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	19	18	$102.00	$7.50
90662 Influenza vaccine split virus, preservative free	16	16	$62.00	$52.03
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$152.00	$72.67
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	11	11	$278.00	$130.68

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	53	38	$121.00	$69.40
99202 New patient office or other outpatient visit, typically 20 minutes	31	31	$152.00	$71.90
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	27	21	$97.00	$41.69

Medical Specialties & State Licenses

CMS Verified: 2026-07-31

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License IL 036103840

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

036103840 (IL)

Hospital & Practice Group Affiliations

Freeport Regional Health Care Foundation

1010 Fairway Dr, Freeport, IL 610326600

Phone: 8155997421

Select Rehabilitation, Llc

2600 Compass Rd, Glenview, IL 600268001

Freeport Regional Health Care Foundation

600 N Rush St, Stockton, IL 610851010

Phone: 8159473211

Secondary Practice Locations

1045 W Stephenson St

Freeport, IL 610324864

Phone: 8155996000

Practice Associates & Co-Workers

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

6 Associated Practitioners

John Cook , APRN, BC

Nurse Practitioner - Family

NPI 1467426445

Advanced Practice Registered Nurse, BC

Ashley Nesemeier , OT

Occupational Therapist

NPI 1467746511

Occupational Therapist

Deborah Davey , PT

Physical Therapist

NPI 1609071182

Physical Therapist

Timothy Rupnow , FNP

Nurse Practitioner - Family

NPI 1699212043

Family Nurse Practitioner

Tina Morgan , OT

Occupational Therapist

NPI 1962795732

Occupational Therapist

Cody Gallagher , PT

Physical Therapist

NPI 1972973238

Physical Therapist

Career & Practice History Timeline

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

13 Historical Events

📍

Updated Business Mailing Address July 31, 2026

Registered at 421 W EXCHANGE ST, FREEPORT, IL 610324008 (Tel: 8155997950)

👤

Provider Name / Credentials Updated July 31, 2026

Recorded as DIANA MCNULTY, MD

✅

NPI Profile Active October 23, 2017

NPI status registered as active in NPPES database

📍

Updated Practice Location October 23, 2017

Registered at 1010 FAIRWAY DR, FREEPORT, IL 610326600 (Tel: 8155997880)

📍

Updated Business Mailing Address October 23, 2017

Registered at 421 W EXCHANGE ST, PO BOX 268, FREEPORT, IL 610324030 (Tel: 8155997950)

👤

Provider Name / Credentials Updated October 23, 2017

Recorded as DIANA MCNULTY

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 23, 2017

Internal Medicine (License #036103840 in IL)

✅

NPI Profile Active September 13, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location September 13, 2012

Registered at 1010 FAIRWAY DR, FREEPORT, IL 610326600 (Tel: 8155997880)

📍

Updated Business Mailing Address September 13, 2012

Registered at 421 W EXCHANGE ST, PO BOX 268, FREEPORT, IL 610324030 (Tel: 8155997950)

👤

Provider Name / Credentials Updated September 13, 2012

Recorded as DIANA MCNULTY

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 13, 2012

Internal Medicine (License #036103840 in IL)

🟢

Initial NPI Registration & Enumeration February 10, 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: 1215900105

Entity Type:

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

Enumeration Date: February 10, 2006

Last Update: July 31, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

421 W Exchange St

Freeport, IL 610324008

Phone: 8155997950

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.