Dr. Darlene G. Johnson , MD
General Practice • Oklahoma City, OK
9220 S Pennsylvania Ave, Suite B
Oklahoma City, OK 731596937
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Dr. Darlene Johnson is listed in NPPES under General Practice.
-
NPI assigned on July 11, 2006; this date does not establish years in practice.
-
Published CMS data list 147 Original Medicare Part B services in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Published rows only; this is not a quality measure.
-
Published Part B service records, 2021:
- 99214 — Established patient outpatient office visit: 108 service units.
- 99213 — Established patient outpatient office visit: 39 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2020 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2021). CPT notice
See the full table · Guide: How to read Medicare Part B data
-
Published CMS data list 949 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Published rows only; this is not a quality measure.
-
Published Part D records, 2021:
- Atorvastatin Calcium — 83 prescription fills, including refills.
- Metformin Hcl — 54 prescription fills, including refills.
- Levothyroxine Sodium — 51 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 38 records in the table · Guide: How to read Medicare Part D prescriber data
-
Medicare Part B services went from 636 in 2017 to 147 in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2021.
Practice Location & Contact Primary Location
9220 S Pennsylvania Ave
Suite B
Oklahoma City, OK 731596937
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
General Practice: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
107 people with Original Medicare in 2021
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2021.
Medicare-allowed amount
About $15,185 in 2021
The total amount Medicare approved for these services in 2021. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021.
Paid by Medicare
About $7,437 in 2021
The part of the Medicare-allowed amount that Medicare itself paid in 2021, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021.
30-day fills
2,314 standardized 30-day fills in 2021
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$36,005 in 2021
The total cost of these prescriptions in 2021, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021.
Open Payments general payments, program year 2021
All general payments: $647.48 across 30 records.
By nature of payment
- Food and Beverage: $647.48 across 30 records.
Reporting-company totals (3 largest of 12)
- Eli Lilly and Company: $107.44 across 6 records.
- Esperion Therapeutics, Inc.: $105.77 across 1 record.
- AstraZeneca Pharmaceuticals LP: $94.39 across 5 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2021 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Oklahoma City and Oklahoma
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Johnson are from 2021.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Johnson are from 2021.
34 active clinicians are listed under General Practice with a practice address in Oklahoma City, OK (131 in Oklahoma).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Oklahoma City
11.8% of these 34 clinicians have the CMS telehealth indicator.
26.5% of these 34 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Medicare Part B services
Medicare Part B services decreased 77% from 636 in 2017 to 147 in 2021.
- 2017: 636
- 2018: 610
- 2019: 402
- 2020: 363
- 2021: 147
-
Medicare-allowed amount
Medicare-allowed amount decreased 71% from $52,850 in 2017 to $15,185 in 2021.
- 2017: $52,850
- 2018: $45,490
- 2019: $32,558
- 2020: $26,732
- 2021: $15,185
-
Paid by Medicare
Paid by Medicare decreased 80% from $38,123 in 2017 to $7,437 in 2021.
- 2017: $38,123
- 2018: $30,293
- 2019: $23,531
- 2020: $17,923
- 2021: $7,437
-
Medicare Part D prescriptions
Medicare Part D prescriptions decreased 46% from 1,764 in 2017 to 949 in 2021.
- 2017: 1,764
- 2018: 1,706
- 2019: 1,950
- 2020: 2,151
- 2021: 949
-
30-day fills
30-day fills decreased 41% from 3,933 in 2017 to 2,314 in 2021.
- 2017: 3,933
- 2018: 3,906
- 2019: 4,573
- 2020: 5,176
- 2021: 2,314
-
Part D drug cost
Part D drug cost varied from year to year: $38,306 in 2017 and $36,005 in 2021.
- 2017: $38,306
- 2018: $65,693
- 2019: $95,461
- 2020: $76,179
- 2021: $36,005
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $876.28 in 2019 to $647.48 in 2021.
- 2019: $876.28
- 2020: $829.22
- 2021: $647.48
Sources: CMS Medicare Physician & Other Practitioners (2021), CMS Medicare Part D Prescribers (2021), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2021 (payments made January 1 – December 31, 2021): 30 records totaling $647.48.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Esperion Therapeutics, Inc. |
Food and Beverage
In-kind items and services
|
NEXLIZET | General | $105.77 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
|
UBRELVY | General | $25.80 |
| Biohaven Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
NURTEC ODT | General | $24.43 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
|
LINZESS | General | $22.47 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $22.39 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
|
SYNTHROID | General | $21.96 |
| Amarin Pharma Inc. |
Food and Beverage
In-kind items and services
|
Vascepa | General | $21.76 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
TRULICITY | General | $21.41 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $20.92 |
| Eisai Inc. |
Food and Beverage
Cash or cash equivalent
|
Dayvigo | General | $20.00 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
EMGALITY | General | $19.77 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $19.76 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $19.67 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $18.84 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
TRULICITY | General | $18.60 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $18.42 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
SOLIQUA 100/33 | General | $18.37 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
TRULICITY | General | $18.25 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
XARELTO | General | $18.08 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $18.03 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FARXIGA | General | $17.98 |
| Eisai Inc. |
Food and Beverage
Cash or cash equivalent
|
Dayvigo | General | $17.50 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
|
TRULICITY | General | $17.32 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Ozempic | General | $16.42 |
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
|
TOUJEO | General | $15.44 |
(top 25 shown)
Source: CMS Open Payments, program year 2021, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2020 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2021; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | 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
|
108 | 88 | $115.00 | $113.24 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
39 | 33 | $80.00 | $75.77 |
Source: CMS Part B by Provider and Service, 2021; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 83 | 6,210 | $1,228.15 | 41 |
| Metformin Hcl | Metformin Hcl | 54 | 4,387 | $332.02 | 29 |
| Levothyroxine Sodium | Levothyroxine Sodium | 51 | 3,870 | $817.46 | 25 |
| Lisinopril | Lisinopril | 50 | 3,780 | $306.50 | 24 |
| Simvastatin | Simvastatin | 43 | 3,810 | $282.05 | 27 |
| Losartan Potassium | Losartan Potassium | 43 | 3,570 | $568.11 | 21 |
| Metoprolol Succinate | Metoprolol Succinate | 43 | 3,210 | $893.57 | 20 |
| Amlodipine Besylate | Amlodipine Besylate | 42 | 3,060 | $247.54 | 20 |
| Furosemide | Furosemide | 34 | 2,160 | $179.03 | 17 |
| Omeprazole | Omeprazole | 33 | 2,910 | $648.52 | 17 |
| Potassium Chloride | Potassium Chloride | 31 | 2,310 | $805.12 | 16 |
| Venlafaxine Hcl Er | Venlafaxine Hcl | 30 | 1,800 | $981.16 | 11 |
| Zolpidem Tartrate | Zolpidem Tartrate | 29 | 1,208 | $162.47 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 27 | 1,890 | $409.17 | 11 |
| Meloxicam | Meloxicam | 24 | 1,440 | $173.04 | — |
| Tramadol Hcl | Tramadol Hcl | 22 | 683 | $100.01 | — |
| Hydrochlorothiazide | Hydrochlorothiazide | 22 | 1,920 | $195.89 | 11 |
| Pantoprazole Sodium | Pantoprazole Sodium | 20 | 1,320 | $253.42 | — |
| Atenolol | Atenolol | 17 | 1,530 | $112.44 | — |
| Alendronate Sodium | Alendronate Sodium | 16 | 1,128 | $220.65 | — |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 16 | 1,440 | $180.10 | — |
| Synthroid | Levothyroxine Sodium | 15 | 810 | $961.97 | — |
| Olmesartan Medoxomil | Olmesartan Medoxomil | 15 | 1,050 | $890.75 | — |
| Gabapentin | Gabapentin | 14 | 1,080 | $493.89 | — |
| Citalopram Hbr | Citalopram Hydrobromide | 14 | 1,140 | $98.79 | — |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Additional State Medicaid & Healthcare Payer Identifiers
Career & Practice History
NPI enumerated July 11, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to November 2026.
NPI Administrative Meta
Other General Practices in Oklahoma City
- Rose Trigg, PA
- Dr. Kathryn Hall, DO
- Dr. Mark James, MD
- Dr. Gerald Paul, MD
- Jennie Hunnewell, MDPLLC
- Dr. Marie Carter, DO
Mailing Address
9220 S Pennsylvania Ave, Suite B
Oklahoma City, OK 731596937
Phone: 4056921331