Active NPI 1215145719 Individual Practitioner Female Practitioner

Dr. Alison Perkins Neff , MD

Internal Medicine • Mason, OH

Professional Overview & Biography Verified Profile Summary

Dr. Alison Neff, MD is a registered healthcare professional specializing in Internal Medicine in Mason, OH. Practice services are available at 212 W MAIN ST under active NPI credentials.

Frequently performed procedures and clinical services include established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, influenza vaccine split virus, preservative free. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

212 W Main St

Mason, OH 450401620

Telephone 5138137668

Fax 5136370445

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Mason, OH

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 22.1 Yrs

State Avg: 26.9 Yrs

Regional Practice Density

24 Specialists

Practicing in Mason, OH (5516 Statewide)

Telehealth Adoption Rate

16.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

42.4% 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 (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	349	181	$193.00	$121.00
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	99	99	$208.00	$121.85
90662 Influenza vaccine split virus, preservative free	30	29	$152.40	$81.49
G0008 Administration of influenza virus vaccine	30	29	$45.00	$30.40
93000 Routine ekg using at least 12 leads including interpretation and report	22	22	$38.00	$13.40
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	17	17	$475.00	$288.30
G0009 Administration of pneumococcal vaccine	17	17	$45.00	$30.49
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	16	16	$309.00	$154.97
36415 Insertion of needle into vein for collection of blood sample	11	11	$12.00	$8.65

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	424	220	$193.00	$123.56
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	115	115	$208.00	$125.32
93000 Routine ekg using at least 12 leads including interpretation and report	49	46	$38.00	$13.89
90662 Influenza vaccine split virus, preservative free	39	39	$106.00	$71.67
G0008 Administration of influenza virus vaccine	39	39	$45.00	$29.36
81002 Urinalysis, manual test	21	18	$11.00	$3.41
G0009 Administration of pneumococcal vaccine	20	20	$45.00	$29.36
99213 Established patient office or other outpatient visit, typically 15 minutes	19	19	$130.00	$87.36
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	18	18	$475.00	$281.01
71046 X-ray of chest, 2 views	18	17	$38.00	$21.72
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	16	16	$309.00	$160.81

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	347	196	$193.00	$125.41
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	98	98	$208.00	$128.03
G0008 Administration of influenza virus vaccine	44	43	$45.00	$27.96
90662 Influenza vaccine split virus, preservative free	40	39	$106.00	$68.46
36415 Insertion of needle into vein for collection of blood sample	29	27	$12.00	$2.96
81002 Urinalysis, manual test	24	20	$11.00	$3.44
93000 Routine ekg using at least 12 leads including interpretation and report	24	23	$38.00	$13.95
G0009 Administration of pneumococcal vaccine	23	23	$45.00	$28.09
99213 Established patient office or other outpatient visit, typically 15 minutes	18	17	$130.00	$88.88
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	14	14	$475.00	$278.05
71046 X-ray of chest, 2 views	13	13	$38.00	$21.93
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	11	11	$309.00	$164.20

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	430	226	$193.00	$79.84
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	115	115	$208.00	$130.65
G0008 Administration of influenza virus vaccine	63	63	$45.00	$16.18
90662 Influenza vaccine split virus, preservative free	60	60	$106.00	$65.05
36415 Insertion of needle into vein for collection of blood sample	38	37	$12.00	$3.00
81002 Urinalysis, manual test	27	22	$11.00	$3.48
93000 Routine ekg using at least 12 leads including interpretation and report	22	22	$38.00	$14.52
G0009 Administration of pneumococcal vaccine	21	21	$45.00	$16.18
71046 X-ray of chest, 2 views	15	15	$38.00	$21.64
0003A Adm sarscov2 30mcg/0.3ml 3rd	15	15	$100.00	$37.98
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	14	14	$309.00	$165.88
0002A Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 30 mcg/0.3ml dosage, diluent reconstituted; second dose	12	12	$100.00	$37.98
90670 Pneumococcal vaccine for injection into muscle	11	11	$426.00	$241.38

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	386	211	$193.00	$68.27
36415 Insertion of needle into vein for collection of blood sample	115	100	$12.00	$2.98
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	114	114	$208.00	$113.99
G0008 Administration of influenza virus vaccine	64	63	$45.00	$16.05
90662 Influenza vaccine split virus, preservative free	60	59	$105.13	$60.47
99442 Telephone medical discussion with physician, 11-20 minutes	38	34	$92.21	$73.45
99213 Established patient office or other outpatient visit, typically 15 minutes	37	34	$130.00	$48.65
93000 Routine ekg using at least 12 leads including interpretation and report	31	29	$38.00	$16.61
G0009 Administration of pneumococcal vaccine	22	22	$45.00	$15.95
81002 Urinalysis, manual test	21	19	$11.00	$3.47
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	20	20	$208.25	$117.12
71046 X-ray of chest, 2 views	20	20	$38.00	$20.33

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	409	195	$193.00	$66.27
36415 Insertion of needle into vein for collection of blood sample	102	92	$12.00	$2.94
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	88	88	$208.00	$110.36
G0008 Administration of influenza virus vaccine	50	49	$45.00	$15.75
90662 Influenza vaccine split virus, preservative free	46	45	$74.24	$54.55
G0009 Administration of pneumococcal vaccine	42	42	$45.00	$15.75
93000 Routine ekg using at least 12 leads including interpretation and report	34	31	$38.00	$16.38
99213 Established patient office or other outpatient visit, typically 15 minutes	30	29	$130.00	$43.94
81002 Urinalysis, manual test	25	20	$11.00	$3.41
90670 Pneumococcal vaccine for injection into muscle	22	22	$309.55	$207.38
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	20	20	$309.00	$167.07
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	20	20	$151.75	$110.66
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	12	$261.00	$99.80
71046 X-ray of chest, 2 views	12	11	$37.00	$19.14
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	11	11	$300.00	$162.10

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	293	167	$193.00	$78.42
36415 Insertion of needle into vein for collection of blood sample	63	57	$11.08	$2.94
G0008 Administration of influenza virus vaccine	57	57	$45.00	$19.30
90662 Influenza vaccine split virus, preservative free	52	52	$65.00	$52.30
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	51	51	$208.00	$111.77
G0009 Administration of pneumococcal vaccine	32	32	$45.00	$19.29
99213 Established patient office or other outpatient visit, typically 15 minutes	29	26	$130.00	$57.62
90670 Pneumococcal vaccine for injection into muscle	21	21	$298.57	$197.52
93000 Routine ekg using at least 12 leads including interpretation and report	18	16	$38.00	$16.16
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$297.00	$159.33
81002 Urinalysis, manual test	17	15	$10.18	$3.41
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	14	$261.00	$114.15
71046 X-ray of chest, 2 views	12	12	$34.00	$17.95
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	11	11	$145.00	$105.59

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	145	87	$232.00	$98.94
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	116	82	$161.00	$67.89
99239 Hospital discharge day management, more than 30 minutes	94	92	$238.00	$102.91
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	47	47	$451.00	$192.96
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	29	$193.00	$93.08
G0008 Administration of influenza virus vaccine	18	18	$45.00	$23.76
90662 Influenza vaccine split virus, preservative free	17	17	$62.00	$48.05
99213 Established patient office or other outpatient visit, typically 15 minutes	16	13	$130.00	$63.09
99217 Hospital observation care on day of discharge	14	14	$161.00	$69.86
99238 Hospital discharge day management, 30 minutes or less	12	12	$162.00	$69.60
99220 Hospital observation care, typically 70 minutes	11	11	$413.00	$179.68

Medical Specialties & State Licenses

CMS Verified: 2025-12-08

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License OH 35.092236

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

2918543 (OH)

Career & Practice History Timeline

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

10 Historical Events

📍

Updated Practice Location December 08, 2025

Registered at 212 W MAIN ST, MASON, OH 450401620 (Tel: 5138137668)

📍

Updated Business Mailing Address December 08, 2025

Registered at 212 W MAIN ST, MASON, OH 450401620 (Tel: 5138137668)

📍

Updated Practice Location November 20, 2018

Registered at 8240 NORTHCREEK DR STE 4100, CINCINNATI, OH 45236 (Tel: 5138537555)

📍

Updated Business Mailing Address November 20, 2018

Registered at 8240 NORTHCREEK DR STE 4100, CINCINNATI, OH 452360709 (Tel: 5138537555)

✅

NPI Profile Active August 01, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location August 01, 2014

Registered at 10500 MONTGOMERY RD, CINCINNATI, OH 452424402 (Tel: 5138652246)

📍

Updated Business Mailing Address August 01, 2014

Registered at PO BOX 636799, CINCINNATI, OH 452636799 (Tel: 5138652246)

👤

Provider Name / Credentials Updated August 01, 2014

Recorded as ALISON NEFF, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 01, 2014

Internal Medicine (License #35.092236 in OH)

🟢

Initial NPI Registration & Enumeration May 18, 2007

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: 1215145719

Entity Type:

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

Enumeration Date: May 18, 2007

Last Update: December 08, 2025

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

212 W Main St

Mason, OH 450401620

Phone: 5138137668

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.